10 December 1976
Supreme Court
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D.R. VENKATACHALAM & ORS. Vs DY. TRANSPORT COMMISSIONER & OTHERS

Case number: Appeal (civil) 1178 of 1976


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PETITIONER: D.R. VENKATACHALAM & ORS.

       Vs.

RESPONDENT: DY. TRANSPORT COMMISSIONER & OTHERS

DATE OF JUDGMENT10/12/1976

BENCH: KRISHNAIYER, V.R. BENCH: KRISHNAIYER, V.R. RAY, A.N. (CJ) BEG, M. HAMEEDULLAH

CITATION:  1977 AIR  842            1977 SCR  (2) 392  1977 SCC  (2) 273  CITATOR INFO :  R          1984 SC 200  (11)  E          1990 SC1851  (29)

ACT:             Motor  Vehicles  Rules,  r.  155-.4,  vires  of  whether         against  public  interests whether contradicts or  impliedly         repeals  proviso  to s. 47(1)  of the  Motor  Vehicles  Act,         1939--Expressio  unius est exclusio alterius,  applicability         of.

HEADNOTE:            The appellants, private stage carriage operators, applied         for   the  renewal of their expiring bus permits.   The  re-         spondent  State  Transport   Undertaking  objected,   urging         preferential  grounds  in its own favour, claiming  to  have         secured  higher marks with the aid of r. 155-A of the  Motor         Vehicles Rules.  The State Transport Undertakings claim  was         upheld.   The appellants moved the appellate  Tribunal,  and         also filed a writ petition before the High Court for  direc-         tions  to  the appellate Tribunal to dispose of  his  appeal         without relying on r. 155-A. The writ petition was dismissed         by  a Single Judge, and an appeal before the Division  Bench         also failed.             In appeal by Special Leave, the appellants assailed  the         validity of r. 155-A the grounds of its being partial to the         Government  against  public interest and  contradicting  the         proviso to s. 47(1) of the Motor Vehicles Act, 1939.         Dismissing the appeals, the Court,         HELD: (Per Krishna Iyer J. for himself and on behalf of   A.         N. Ray CJ.)         1.  The  assignment  of marks under r. 155-A  is  geared  to         public  interest, which h the desideratum of s. 47(1) of the         Act.   This is not an arbitrary stroke  favouritism  because         there are many promotional  factors  bearing  on  the inter-         est  of the travelling public which a State  enterprise  qua         State enterprise will, but a private enterprise qua  private         enterprise  will  not take care of. There is  equity  in  r.         155-A, making up, as it does, for the present short.falls in         the making system vis a vis a government transport  service.         [398H. 399B]            P.  Kumaraswamy v. State Transport  ,Appellate  Tribunal,

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       Madras & [1976] 2 SCR. 214 referred to.         The Court observed:             Legal Darwinism, adapting the rule of law to new  socie-         tal  developments,  so as to survive and  serve  the  social         order, is necessary.  [398B]             Cardozo:  The nature of the Judicial Process; Yale  Uni-         versity Press; pp. 151-152, relied upon.             2. There cannot be any conflict between s..47(1) proviso         and  the  impugned  rule.  The proviso does  not  carry  any         negative  injunction that transport tribunal shall not  give         any other preferential consideration than what is stated  in         it.  There is no implied interdict that in other  contingen-         cies  no  preference shah be accorded.  The  proviso  merely         takes care  of  a  specific  situation. Moreover. the  mark-         ing  formula does not deprive the  administrative  tribunals         their discretion to choose the best  [399C-E]         Per H.M. Beg, 1. (Concurring)                  Where  there is a single specified mode  laid  down         for doing something   exercise of the legal power to do  it,         the specified mode may, negatively operate.                    393            (Krishna Iyer, J.)         as  a prohibition against what is not prescribed at all  and         is  outside  the statute. But expressio unius  est  exclusio         alterius could not apply ot a case where two modes of  doing         the  same thing are provided for by a statute itself.   Here         both  chapters IV and IV-A enable plying of State  transport         as well as privately owned vehicles on hire on same  routes,         but the grounds for these combined  operations under the two         chapters are different. [403A, C, D]             Parbhani  Transport  Co-operative SOciety Ltd.,  v.  The         Regional Transport Authority, Aurangabad & Ors. [1960]  (3’)         SCR 177, applied.         Nazir Ahmad v. King Emperor (1936) L.R. 63 I.A. 372, distin-         guished.             Colquhoun  v. Brooks (1881) 21 Q.B. 52 at a, 65;  Taylor         v. Taylor (1876) 1 Ch. D. 426 at 430 and Crawfords "Statuto-         ry  Construction" 1940 Edn., Chapter 18, paragraphs  157  to         158, pages 240-244, referred to.

JUDGMENT:             CIVIL  APPELLATE  JURISDICTION:   Civil   Appeals   Nos.         11781180/76.             Appeals  by  Special Leave from the Judgment  and  Order         dated  22-9-1976 of the Madras High Court in  Writ  Petition         Nos. 3059/ 75, W.A. No. 339/76 and W.P. No. 14 respectively.             Y.S.  Chiale,  V. Subramanyam and Vineet Kumar  for  the         Appellant in C.A. 1178/76.             K.S. Ramamurthi,  M.N. Rangachari,  A.R. Ramanathan,  K.         Thimmalai,  Jayaraman,  M.M.L. Srivastava and A.T.M.S.  Sam-         path for the Appellant in CAs. 1179-1180/76.             V.P.  Raman, Addl. Sol. Gen. (In CAs. 1178  to  1180/76,         D.N.  Misra,  J.B. Dadachanji for Respondent No. 2  in  CAs.         1178 & 1180 of 1976 and Respondent 2 in C.A. 1179/76.             K.  Parasaran, Adv. Genl. Tamil Nadu, ,A.V.  Rangam,  T.         Sathiadev  and (Miss) A. Subhashini for Respondents in  CAs.         1179-80 except Transport Corporation.             K. Jayaram, V.T. Gopalan and K. Ram Kumar for the Appli-         cant and Intervener in C.A. 1178/76.             The Judgment of A.N. Ray C.J., and Krishna Iyer, J.  was         delivered  by Krishna Iyer, J.M.H. Beg, J. gave  a  separate         concurring opinion.             KRISHNA  lYER, J. A terse presentation of the twin  con-

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       tentions  canvassed before us, in these appeals  by  special         leave, after discomfiture at two tiers below, highlights the         importance of the economic role of the State in undertaking,         with  legal  preferences, strategic services  vital  to  the         community.   The keynote thought underlying our decision  is         that the jural postulates of the old competitive order  have         to yield place to the new values of developmental  jurispru-         dence. Public law, in India, responding to the public  needs         and  the State’s functional role mandated by  the  Constitu-         tion,  has evolved new approaches to old problems and  given         up dogmas which once prevailed during laissez faire days but         now  have become obsolete because of the  ’welfare’  economy         which has been nurtured.  This radical change in jural         394         perspectives has its impact on canons of statutory construc-         tion  and on verdicts about the vires of  legislation.   All         these  generalities acquire appropriate application  in  the         present cases which arise under the Motor Vehicles Act, 1939         (Act IV of 1939) (the Act, or short) from challenges  before         the High Court without avail, by private operators,  of  the         permit granted to  the State Transport Undertaking (STU)  by         the  transport  tribunals.  The validity of r. 155A  of  the         Motor  Vehicles  Rules framed under s. 68 of the Act  is  in         issue.             The  core of counsel’s submissions is two-fold:  (1)  Is         rule 155A, assigning five marks for a State undertaking, not         family  violative  of s  47  of  the Act?  Does  the   later         amendment   to  the  proviso to s. 47 giving  preference  to         State transport systems, other things being equal, impliedly         repeal,  as contrary to its content, rule 155A  which  gives         better  advantage to the favoured category,  fulfilling  the         spirit of the statutory amendment more tellingly ?  We  will         proceed  further after stating the circumstances leading  up         to  the writ petition before the High Court and  the  appeal         before us.             The  appellants, who have come by special leave to  this         Court, are private stage carriage operators.  We will relate         the  facts of one case (Civil Appeal No. 1178 of  1976)  the         decision  in  which will settle the fate of  the  rest,  the         decisive  point of law being identical.  The permit  of  the         appellants  but  on  the route Salem to ‘rode  was  to  have         expired on September 13, 1974 and so he applied for  renewal         under  s. 58(2) of the Act.  The respondent-State  Transport         Undertaking  objected  to the renewal of the  permit  urging         preferential grounds in its own favour.  The State undertak-         ing’s  claim was upheld on the score that it secured  higher         marks  computed  with the aid of r. 155-A.  Baulked  in  his         application for renewal, the appellant challenged the  order         before  the  Appellate Tribunal.   Apprehending  an  adverse         decision on the strength of r. 155-A, he filed a writ  peti-         tion  before  the  High Court praying that  a  direction  be         issued  to the Appellate Tribunal to dispose of  his  appeal         without relying on r. 155-A.  The plea was negatived by  the         learned  Single  Judge and a Division  Bench  dismissed  the         appeal therefrom.  Aggrieved by the concurrent findings  the         appellant  has assailed before us the vires of r.  155-A  as         obnoxious  to public interest excluding, in some measure,  a         fair competition and being contrary to the proviso to. s. 47         (1 ) of the Act.             A meaningful discussion of the points debated at the Bar         has to begin with a brief outline of the scheme of the Motor         Vehicles Act in the branch relating to grant of permits  for         transport  vehicles (Chapter IV).  All  transport  vehicles,         before  they can be plied in any public place, require  per-         mits  under  s. 42 and even government vehicles, if  put  to

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       commercial  use, have to possess permits.  Applications  are         made for stage carriage permits under s. 57 and the  consid-         erations germane to their grant are set out in s. 47 of  the         Act.   It  is  common ground, and decisions  are  legion  in         support  thereof, that the interest of the public  generally         is the super-consideration decisive of the award’ of permits         when  there is a plurality of applicants.  He who can  serve         the  public best gets the permit to ply the  stage  carriage         from the quasi-judicial authority charged with the responsi-         bility  for  choice.  We may read the relevant  part  of  s.         47(1) here:         395                       (Krishna Iyer, J.)                             "47.  Procedure  of  Regional  Transport                       Authority in considering application for stage                       carriage permit,--                         (1) A Regional Transport Authority shall, in                       considering  an application for a  stage  car-                       riage  permit,  have regard to  the  following                       matters, namely :-                       (a) the interest of the public generally;                       X                     X                      X                       X                             Provided  that  other  conditions  being                       equal,  an  application for a  stage  carriage                       permit from any State Transport Undertaking or                       a Cooperative Society registered or deemed  to                       have  been registered under any  enactment  in                       force for the time being shall, as far as  may                       be, be given preference over applications from                       individual owners.                       X                                            X                       X                         X"             The interest of the public generally, is often-times too         vague and, generally, the exercise of discretion deserves to         be canalised to guide the statutory bodies and to facilitate         better appreciation by the applicants of the claims that may         ordinarily be considered by transport tribunals.  From  this         angle,  the  Tamil Nadu State has  framed  rules.  expressly         subordinated  to  the paramount factor  of  public  interest         which  shall weigh with tribunals when adjudging among  com-         peting claimants.  ’This Court, in Kumaraswamy(1), summed up         the purport of the rule thus:                             "The  system of marks, under  the  Rules                       framed under the Act by the Tamil Nadu Govern-                       ment,  prescribes the  various  qualifications                       for  applicants  for  permits  for   passenger                       transport under the Motor Vehicles Act.   Rule                       155-A  crystallises these  considerations  and                       describes  them as guiding principles for  the                       grant  of  stage carriage permits.   The  rule                       itself  emphasizes what is obvious,  that  the                       paramount consideration of the interest of the                       public, as enshrined in Section 47(1), must be                       given  full  weight while awarding  per  mits.                       That means to say that the various factors set                       out  in  rule 115-,4 are  subject  to  section                       47(1).   This is clarified by sub-rule (4)  of                       Rule 155-A, which runs thus:                             "After  marks  have been  awarded  under                       sub-rule  (3), the applicants shall be  ranked                       according to the total marks obtained by  them                       and  the applications shall be disposed of  in                       accordance with the provisions of  sub-section                       (1 ) of section 47."

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                           There is no doubt that bus transport  is                       calculated to benefit the public and it is  in                       the fitness of things that the interest of the                       travelling public is highlighted while  evalu-                       ating the relevant worth of the various claim-                       ants."         Rule  155A(3)D(1)  offends against the prescription  in  the         proviso         (1) [1976] 2 S.C,R.214.         396         to  s.  47(1  ) and is void, according to  counsel  for  the         appellants.  Before examining this alleged vice, we  may  as         well  read sub-rule (3) of Rule 155-A to the  extent  neces-         sary:                             "(3)  After  eliminating in  the  manner                       laid  down in subrule (2), the applicants  who                       are  unsuitable,  marks shall be  awarded  for                       assessing the different qualifications of  the                       remaining applicants for the grant of  permits                       as follows :-                             (A) Residence--Two marks shall be award-                       ed  to  the applicant who  has  his  principal                       place  of business or permanent  residence  at                       either terminus or on the route.                             Explanation.--The term ’principal  place                       of  business’ shall mean only  the  registered                       headquarters of the company and not the  resi-                       dence  of the Managing Director or  any  other                       Director of the Company.                             (B) Technical qualification   (for Owner                       or  Managing Director).---Two marks  shall  be                       awarded  to the applicant if the Owner or  the                       Managing  Director  of  the  organisation  has                       technical qualification which may be useful to                       run the transport service efficiently.                             (C)   Workshop  facilities.--Two   marks                       _shall  be awarded to the applicant who is  in                       possession of workshop facilities as given  in                       Explanation under item (2)(iv).                             (D)  (i) Five marks shall be awarded  to                       the  applicant falling within the  proviso  to                       clause (c) of section 62-A of the Motor  Vehi-                       cles  Act, 1939, i.e., State Government,  Cen-                       tral Government or any Corporation or  Company                       owned  by  the  Central  Government  or  State                       Government.                             (ii)  The  applicant who  operates   not                       more than nine stage carriages excluding spare                       buses,  shall be awarded marks as follows :--                       (1 ) Applicant operating one to three buses--4                       marks.                       (2)  Applicant operating four to six  buses--3                       marks.                       (3) Applicant operating seven to nine buses--2                       marks.                             Provided that if a new entrant has  made                       an  application for a short route  other  than                       town service route, no marks shall be  awarded                       to any applicant under clause (B), (C) and (D)                       (ii)."             The  ground  of invalidation urged is that there  is  no         justification  for grant of 5 marks to an applicant  falling         within  r. 155A (3)(D)(1) solely for the reason that  it  is         owned  by the State Government. Ownership is irrelevant  and         the sacrifice of public interest at the altar of  government

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       interest  is contended to be a flagrant partiality shown  by         the subordinate legislation in the teeth, and  transgressing         the  limits, of the equal consideration implicit in s.  47(1         ).  The. second argument            397          (Krishna Iyer, J.)         is  that  the proviso to s. 47(1), as amended by Act  48  of         1974 (Tamil Nadu Amendment Act) gives preference to a  State         Transport  Undertaking,  other things being equal,  and  im-         pliedly  provides against any larger preference being  shown         to  such  an undertaking in the guise of  rules.   For  this         reason,  the  generosity of the rule being contrary  to  the         narrow preference in the proviso to the section (brought  in         by later amendment), the  former cannot  co-exist  with  the         latter  and must be taken as impliedly  repealed.   Although         this amendment to the Act was later than the promulgation of         the  rules, the law as it stands today is the basis  of  our         judgment.   Thus  the two question formulated right  at  the         beginning of the judgment arise in the setting of facts  and         law we have broadly described above.             It  was  urged by Shri Chitale, followed by  Shri  Rama-         murthy,  in two of the several matters heard together,  that         Part  IVA provided for monopolistic award of permits to  the         State  Transport Undertaking but Part IV put everyone  on  a         competitive  basis,  regardless of whether one was  a  State         undertaking or not, the most meritorious winning the  battle         in a free market economy.  If the soul of Part IV were  free         competition,  not  ’rigged’ selection, aid in the  shape  of         extra  marks  given by rules had to be withdrawn  and  every         applicant  had to run without anyone being given a  handicap         in the race.  State undertakings being awarded 5 grace marks         for  no reason except that they belonged to the State was  a         gross  violation  of the spirit and letter of s. 4  7  (1  )         which  postulated  the promotion of public interest  as  the         basic  consideration and the selection of the ablest as  the         criterion  for  choice. Both counsel, in  their  overlapping         arguments, stressed that there was a negative mandate in the         proviso  to s. 47(1) not to prefer a State undertaking  save         where other conditions were equal and if the State undertak-         ing  was  unable to attain the condition  of  equality  with         another, its claim could not be promoted by the artifice  of         assignment of marks to a State undertaking qua State  under-         taking.             Public law, in our pie-bald economy and pluralist socie-         ty,   responds  to societal  challenges  and  constitutional         changes.  TO miss the ideological thrust of our Constitution         and the economic orientation of our nation while  construing         legislation  relating  to public law and scanning  them  for         their  validity is to fail in understanding the social  phi-         losophy  that puts life and meaning into the  provisions  of         the Act. The law, being realistic, reckons with the  social-         ist sector covering State and co-operative enterprises.             The  special  status  of  a  government-owned  transport         undertaking  in  a Welfare State is obvious.  It  has  large         resources to cater to the traffic needs.  It has, within its         range of influence and coordination. many services useful to         the  travelling  public, which may be beyond  the  reach  of         private ownership.  Its functional motto is not more profits         at  any  cost  but service to citizens first and  in  a  far         larger  measure  than  private  companies  and  individuals,         although  profitability  is  also a factor  even  in  public         utilities.   Its sensitivity to  community welfare  and  en-         couragement  of labour participation, its accountability  to         the  Government, the legislature and the public put it in  a         category  by itself.  It is socially conscious,  not  profit

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       obsessed.   We are aware of the shortfalls of  some  public-         sector undertakings in some respects         398         but it needs little argument to hold that to classify  State         transport  systems on a separate footing is realsic  and  is         ordinarily  no sin before the principle of  equality  before         the law. The legislative body has done, in the given circum-         stances,  what it  thought was sound policy  and we find  no         vice in the policy.             To  classify  what  is  conceptually  and  operationally         different  into  a separate category  is  intelligence,  not         impertinence.   The judicial art of interpretation  and  ap-         praisal  is  imbued with creativity and  realsm,  especially         where fundamental changes have been wrought by the Constitu-         tion  in our approach to public sector  enterprises.   Legal         Darwinism, adapting the rule of law to new societal develop-         ments, so as to survive and serve the social order is neces-         sary:                             "That  court best serves the  law  which                       recognizes that the rules of law which grew up                       in a remote generation may, in the fullness of                       experience, be found to serve another  genera-                       tion  badly, and which discards the  old  rule                       when it finds that another rule of law  repre-                       sents  what should be according to the  estab-                       lished and settled judgment of society, and no                       considerable   property  rights  have   become                       vested in  reliance upon the old rule.  It  is                       thus  great writers upon the common  law  have                       discovered  the  source  and  method  of   its                       growth, and in its growth found its health and                       life. It is not and it should not be  station-                       ary.  Change of this character should  not  be                       left  to  the  legislature.   If  judges  have                       woefully  misinterpreted  the mores  of  their                       day,  or  if  the mores of their  day  are  no                       longer  those of ours, they ought not to  tie,                       in  helpless  submission, the hands  of  their                       successors."                       (Cardozo:   The Nature of the  Judicial  Proc-                       ess:  Yale University Press: pp. 151-152).             This  refreshing  perspective guides us to look  at  the         submissions advanced.  Both the contentions can be shot down         by three considerations.  Firstly, a State enterprise, in  a         truly Welfare State, is charged with a social  consciousness         and  responsibility for its citizens, an attention to  serve         them and a willingness to embark on public utility undertak-         ings  better to fulfil people’s demands.  The public  sector         enterprises  are  expected to be model employers  and  model         servants,  planning their budgets, subjecting themselves  to         public  audit and criticism and inquest by legislative  com-         mittees  and  the Houses of the  legislature.   Profits  are         their  concern but, more importantly, public weal  is  their         commitment.   Such is the philosophy of the State sector  in         our  socialistic pattern of society.  Article 19(6)(ii)  and         Art.  38  of the Constitution, s. 47 (1  ),  especially  the         proviso,  and  Charter IVA of the Act (now governed  by  the         impregnable Ninth schedule to the COnstitution) throw  light         on  this policy of the paramount law. Here,  therefore,  the         rule making authority, having regard to all relevant circum-         stances, has decided to award to a State Transport Undertak-         ing 5 marks.  This is not an arbitrary stroke of favouritism         because  there are many promotional factors bearing  on  the         interest  of the travelling public which a State  enterprise         qua  State  enterprise will, but a  private  enterprise  qua

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       private enterprise will not, take  care  of.         399         (Krishna lyer, J.)         After all, private enterprise has its primary motivation  in         profit,  although,  under State direction,  it  is  becoming         socially  responsive. The superiority in many respects  (not         all respects) of State Transport Undertakings, in the legis-         lative  judgment, has led to r. 155A.   This  classification         has noetic nexus with and rational relation to the object of         augmenting the good of the passenger community.  The theory,         rooted in the obsolescent laissez faire economics, that only         cold  competition among claimants to run  businesses  brings         out  the  best operator has serious  limitations  in  fields         where the focus is on public service, not gains of business.         Public  law,  adapting itself to this  socio-economic  view,         shifts  its emphasis.  This is what we have  earlier  called         legal Darwinism.  We, therefore, hold that the assignment of         marks  under r. 155A is geared to public interest, which  is         the desideratum of s. 47 ( 1 ) of the Act.                We now move on to an examination of the alleged fatal         incompatibility between the proviso to s. 47(1) and L  155A.         This  second submission of counsel is a  trifle  mystifying.         There cannot be a contradiction without diction.  Unless  s.         47(1)  proviso carries a negative injunction that  transport         tribunals  shall not give any other preferential  considera-         tion  than what is stated in it,  there cannot be  any  con-         flict between it and the impugned rule.  The proviso to  the         section does nothing of the kind.  It merely takes care of a         specific situation. Where a State Transport Undertaking: and         a  private operator are equally balanced, the scales may  be         tilted  in favour of the former. There is no implied  inter-         dict  that  in  other contingencies no  preference  shah  be         accorded.   It is not a ’Thus far and no further’.   Indeed,         the  spirit of this proviso has been carried further by  the         rule, having regard to the realities of the total  transport         system plying in the  State.              The third consideration which silences the  appellant’s         charge  of  violation of s. 47 is that the  marking  formula         does  not  deprive  the administrative  tribunals  of  their         discretion to choose the best.  The    consternation of  the         private  entrepreneurs that by manipulating  the     marking         mechanism  the State undertaking, regardless of  its  demons         trable inferiority of public service, will knock off all the         permits,  paralysing the power of the Tribunal to  pick  and         choose,  by the overwhelming and inevitable  superiority  of         marks,  is misplaced.  The  fear is falsified if we read the         rule aright.  It has, written on its face,   its own limita-         tion.   Marks  shall  guide, not  govern  the  award.   Full         discretion, to some extent, canalised by the marking  proce-         dure,  still   vests in the Transport Authority.   For,  the         marks, these authorities  will remember, sway the   exercise         of   judgment, not  supersede it.    It is conceivable  that         the  pecularities of a route, the calamitous performance  in         an  area of a State transport system, the  outstanding  spe-         cial  facilities of a particular private operator  or  other         like  feature  may outweigh the mechanics of  marks.   After         all,  many  qualifications, advantageous to  the  travelling         public,  may be thought of, untouched by the  rigid  marking         moulds.  They are not irrelevant and may still be   regarded         by  the  tribunals.  All this leads to the  conclusion  that         marks  shape but do not clinch the ultimate selection.   The         public  is the   consumer; its plenary service is the  final         test.  Therefore, these is         400         nothing  in r. 155A deprivatory of the discretion vested  by

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       s. 47(1).This interpretative footnote must allay the  appre-         hensions voiced by counsel.  Nor are we convinced that there         is no possibility of a private operator exceeding the  mini-         mum  marks of a State Transport Undertaking.  Moreover,  the         marking formula lacks flexibility. Merely because the  State         Transport  Undertaking has no ’residence’   or  workshop  on         the  route, although its attention and ability to react  are         considerable, why should it suffer a marks-created  handicap         ? There is equity in r. 155A, making up, as it does, for the         present  shortfalls in the marking system visa visa  govern-         ment transport service.           The  appeals,  for these reasons, must  suffer  dismissal.         There will be no order as to costs.           BEG,  J.   I  agree with the conclusion  reached   by   my         learned brother Krishna Iyer.  As arguments in this batch of         cases seem to raise some questions which I, speaking entire-         ly  for myself, consider to be really outside the sphere  of         the  law which we have to interpret and apply, I would  like         to  make  some  observations on the  implications  of  these         questions argued after stating my reasons for agreeing  with         my learned brother.             Mr. Chitaley’s first argument for some of the appellants         raised  only what may be described as "normal"  legal  ques-         tions  of  construction  or interpretation  (there  is  some         difference  between   these  two allied  processes  as  will         appear  from Crawfords "Statutory Construction", 1940  Edn.,         Chapter  18,  paragraph  157 to 158 pages  240-244),  as  to         whether Rule 155A(3)(D)(i), reproduced in the judgment of my         learned brother Krishna Iyer, gives effect to or   conflicts         with Section 47 of the Motor Vehicles  Act, 1939  (hereinaf-         ter  referred to as ’the Act’).  It was urged by the learned         Counsel  that what can be done only by resorting to  Chapter         IV-A of the Act, by framing a scheme for partial or complete         nationalisation  of  the routes involved, cannot  be  accom-         plished by framing a rule only ostensibly purporting to give         effect to Section 47(1 ) of the Act or the proviso to it.             In  ultimate analysis, the rule of  construction  relied         upon  by Mr. Chitaley to make the last mentioned  submission         is:  "Expressio unius est exclusio alterius".   This  maxim,         which  has been described as "a valuable servant but a  dan-         gerous master (per Lopes  J.,  in Court of Appeal in  Colgu-         noun  v. Brooks(1) finds expression also  in a rule,  formu-         lated  in Taylor v. Taylor,(2) applied by the Privy  Council         in Nazir Ahmad v. King Emperor(3) which, has  been   repeat-         edly adopted by this Court.  That rule says that an express-         ly laid, down mode of doing something necessarily implies  a         prohibition  of doing it in any other way.   The maxim  from         which  the rule in Taylor  v. Taylor(supra) is  derived  and         the  rule  itself  were  discussed  and  explained  by  this         Court  in   the  Parbhani  Transport   Co-operative  Society         Ltd. v. the Regional Transport  Authority, Aurangabad  & Ors         (4)  with specific reference to the argument advanced  there         that,         (1)  (1881) 21 Q.B.D. 52 at 65.     (2) (1876) 1 Ch. D.  426         at  430. (3) (1936) L.R. 63 I.A. 372.       (4)  [1960]  (3)         S.C.R. 177.         401         as  Chapter IV-A is meant for running its own buses  by  the         State  by  nationalisation of Motor Vehicle  Road  Transport         Services,   it  was not open to the State to apply for  per-         mits  at  all under Chapter IV of the Act which  applies  to         private  operators  only.  This  argument,repelled  by  this         Court  there has been put forward before us  in  a  somewhat         different  and attenuated form by Mr.  Chitaley.   Neverthe-         less,  the basic rule of interpretation submitted to  us  is

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       the  same as the one which was relied upon in this Court  in         the Parbhani  Transport Co-operative Society’s case  (supra)         in an  attempt  to  exclude the State Transport  Undertaking         altogether from entry into what was sought to be made out to         be the exclusive preserve of private operators.  Before  us,         it  is contended that exclusion of private  operators  could         only be brought about by resorting to a duly framed  scheme,         on appropriate grounds given in Section 68C of the Act,  but         not   indirectly by framing the kind of rule which  has  the         effect  of  excluding private operators from the  sphere  of         open  competition which, it is submitted postulates an  ini-         tial equality of positions.  This argument rests, as I  will         indicate  below,  on  two  erroneous  assumptions:  firstly,         that Rule 155A(3)(D)(i) has the effect of excluding private         operators; and, secondly, that the proviso to section  47(1)         compels the permit issuing authorities to postulate or start         by  assuming  an equality of conditions, as between  private         operators  and  a  State  Transport Undertaking.  Indeed, if         they  were to  start  with  the assumption of equality  they         will  have to give preference to the State Transport  Under-         taking  straightaway  because that is what the  proviso  re-         quires.   The mainstay of the arguments of  learned  Counsel         for  the  appellants  before  us,  however,  is  that   Rule         155A(3)(D)(i) really has the effect of excluding the private         operators  altogether  by making it impossible for  them  to         ever obtain preference  over  the  State Transport Undertak-         ing  when it applies for a permit in    competition  against         them.         The  reply  on behalf of the State is that no  exclusion  of         private operators is either intended or brought about by  an         application of Rule 155A(3)(D)(i) of the Act.  On the  other         hand, it  is  submitted that, as an ordinary operator and  a         State  Transport  Undertaking are, in many ways,  so  unlike         each  other that,  unless  five marks were assigned to  each         application of  the  State  Transport Undertaking, it  could         not  compete at all, on a fair and equal footing, with  pri-         vate  operators, who are able to  obtain  straightaway   two         marks for residential qualifications, four marks if they are         operating  not  more  than three buses, and  two  marks  for         workshop facilities.  apparently, the residential qualifica-         tion  has reference  to  residence within the area in  which         the motor vehicles are to ply, and marks workshop facilities         are granted to operators who are able  to  show such facili-         ties  on  particular routes whereas  the   State   Transport         Undertakings,  it is pointed out, will neither have a  resi-         dence   within  such an area nor may be able to show,  in  a         particular  case, workshop facilities on  particular  routes         even  though they  may  have  better workshop facilities  on         the  whole.   Again, two marks are to be  given  to  private         concerns  or organisations, plying on particular routes,  if         their  owners or Managing Directors have  certain  technical         qualifications.  It is pointed out that, as State  Transport         Undertakings do         402         not  have individual owners or Managing Directors, for  whom         these  marks could be allotted, even though they  may   have         technically  much  better qualified personnel to  attend  to         their motor  vehicles, the impugned Rule 155A(3)(D)(D  could         be  justified as meant only to place State Transport  Under-         takings  on  a  footing of possible  equality  with  private         operators  in  competing. for permits to  be  granted  under         Section  47(1) read with Section 42(3) of the Act and to  do         no more.  Furthermore, Rule 155A(3)(D)(i) occurs in a  group         for  marks  to  be assigned on the basis of  the  number  of         vehicles run by the operators.  In any case, it was  submit-

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       ted that  it  is  a  fair provision as a rough guide but  is         not decisive by any  means.  It seems to me that the conten-         tion advanced on behalf of the State that the impugned  part         of Rule 155A enables provisions  of  the proviso to  Section         47(1),  read  with Section 42(3), to be worked a  manner  in         which the statutory provisions were intended to overate  and         does not really authorise a circumvention  or   infringement         of the provisions of Chapter IV of the Act, is well founded.             The manner in which provisions of Chapter IV of the  Act         were  meant to operate in cases of competition between  pri-         vate  operators and State Undertakings was explained in  the         Parbhani   Transport Co-operative Society’s case (supra)  as         follows (at p. 184):                            "The  Government has of course the  power                       to do. any business it lies and therefore  the                       business Of running stage carriages.  We  have                       earlier drawn attention to the change made  in                       cl. (a) of S. 42(3) by the: amendment of 1956.                       Previously,  it  was  not  necessary  for  the                       Government   to obtain permits under s.  42(1)                       for  buses  that it intended to run  as  stage                       carriages.  SinCe the amendment the Government                       can  no  longer run  transport  vehicles   for                       commercial purposes without obtaining  permits                       under  S. 42(1 ). Now the plying of buses  as,                       stage carriages is a commercial enterprise and                       for such buses, therefore, under  the sections                       as  they stand,  the  Government   would   re-                       quire  permits as any one else.   That   being                       so,   the  sections clearly, contemplate  that                       the  Government  may  apply   for  and  obtain                       permits  for  its buses run  as   stage   car-                       riages. The rule applied in Nazir Ahmad’s case                       (1936) L.R. 63, I.A. 372, 381) does not permit                       the ordinary meaning of s. 42, sub. s.(1)  and                       sub.  s.(3), el. (a) to be  cut  down  because                       of  the  provisions of Chapter IVA.   The  Act                       lays  down two independent sets of  provisions                       in  regard  to the. running of  buses  by  the                       Government,  one  under Chapter  IV  and,  the                       other  under  Chapter IVA.  Chapter  IVA   was                       intended  to give the Government,  a   special                       advantage.  When  the  Government  chooses  to                       proceed   under   that  chapter,  it   becomes                       entitled as a matter of  right  under s. 68F(1                       ) to the necessary permits.  Under Chapter  IV                       the  Government does not have any such  advan-                       tage; it has to compete with other applicants,                       to secure permits to be able to run its buses.                       The powers under the two. chapters are  there-                       fore different.  To such a case the  principle                       of Nazir Ahmad’s case cannot be applied".         403         Both  Chapters IV and IVA enable plying of  State  transport         as well as privately owned vehicles on hire on same  routes,         but   the  grounds for these combined operations  under  the         two   chapters  are different.  The governing  principle  of         Section 47(1) is to preserve as free and open a  competition         as  possible  in  public interest, whereas  the  reason  for         allowing private operators upon a nationalised route may  be         broader  one of public policy which may favour  a   decision         against  sudden stoppage of privately provided motor  trans-         port, so as to avoid wastage of national wealth, even though         it  takes the form of  investments by  individual  entrepre-         neurs, or, its object may even be prevention of undue  hard-

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       ship   to  private  operators.  Other  reasons  for  permit-         ting  combined  services  can be. given.   It  is,  however,         possible only under Chapter IVA to exclude private operators         completely.  But, unless any rule relating to  provision  of         motor  transport under chapter IV has that effect it  cannot         be  asserted  that  what can be done only  by  resorting  to         Chapter  IVA  is  being attempted under  the  provisions  of         Chapter IV.             The rule in Nazir Ahmad’s case (supra) applies only   to         cases  where there is a single specified mode laid down  for         doing something in exercise of the legal power to do it.  In         that event, the  specified mode-may, negatively, operate  as         a  prohibition against what is not prescribed at all and  is         outside  the  statute.  But, it could not apply  to  a  case         where two modes of doing the same thing are provided for  by         a statute itself.  Nor, as I have indicated above, could  it         be  said that what is to be done under Chapter IV  and  what         can be done under a scheme under Chapter IVA are really  the         same  simply because, in a given case, the results  of  both         may appear to be similar or  even identical.             Mr.  Ramamurthi,  appearing  on behalf of  some  of  the         appellants,  embarked on quite an ambitious  argument  built         upon  an elaboration of the theme that Chapters IV  and  IVA         belong  to two different fields or spheres of  action  which         cannot, so to speak, be allowed to mix, overlap, or collide.         It was contended that the waters of what are, in the eye  of         law, two different streams of activity. must not be  allowed         to  mingle.  If 1 am not mistaken, even the  word  "pollute"         was used, in the flow of arguments, to describe, possibly in         a  light   vein,  the alleged inequity of an invasion  by  a         State  Transport  Undertaking of  the  supposedly  exclusive         preserve of private enterprise.  It was suggested that  such         a  result  would involve "pollution" of the domain  of  open         competition,  which is forbidden territory for State  Under-         takings  introduced as a consequence of another ideology  or         sphere of action found in Chapter IVA.  It seems to me  that         to hear such  an  argument, advanced even in a lighter vein,         is  really rather surprising in view of the language of  the         statute  and welt known facts to which it is related. It  is         quite  well  known that ours is what is known  as  a  "mixed         economy".  The  highest  norms  of our-law are  embodied  in         our  Constitution.  Article 19(6)(ii)  of  the  Constitution         clearly  contemplates:  "the carrying on by the State, or by         a  Corporation or controlled  by  the State, of  any  trade,         business,  industry  or service, whether to  the  exclusion,         complete  or partial, of citizens or.  otherwise"..  And,-in         order  to  fulfil  the objectives of the  Preamble.  to  our         Constitution, the Constitu-         404         tional mandate, contained in Article 39(c) of the  Constitu-         tion, which the State has to carry out, may make it  impera-         tive  upon the  State, in appropriate circumstances,  either         to take over or nationalise motor transport on roads in  any         region  or  area completely or to supplement  the  Transport         Services  provided by private operators with those  provided         by the State.  It seems to me that neither  Chapter IV   nor         Chapter IV-A can be really put into two separate water-tight         compartments  so as to make it imperative either to  exclude         State Transport Undertakings from operating under the provi-         sions  of Chapter IV or to exclude private operators when  a         scheme under Chapter IV-A, which may itself provide for only         a partial exclusion of such operators, is in force.  In  the         face of the clear words of proviso to Section 47 (1 ) of the         Act,  enabling  State  Transport  Undertakings  to   provide         Transport  facilities  in open competition, and  of  Section

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       68(C)  in Chapter IV-A of the Act, enabling  "the  exclusion         complete  or partial" of private operators  from  particular         areas  or routes, such an argument cannot be put forward  at         all  before us under some preconceived  notions  even  after         these  very notions had been rejected by this Court  in  the         Parbhani Transport Co-operative Society Ltd’s case  (supra).         It  is clear  that the two chapters  of  the  same  Act  are         both intended to subserve "the interest of the public gener-         ally" in any area in the country, That is the integrating or         governing  principle  evident from the language of  the  Act         itself in both Chapter IV and Chapter lV-A of the Act.           An argument advanced on behalf of the appellant seemed  to         be that Rule 155A(3)(D)(i) results in defeating the  mandate         of  Section  47(1) of the Act, that the  Regional  Transport         Authority must, as explained repeatedly by this Court,  keep         "the  interest of the public generally" in  the  fore-front.         As already indicated by me, this argument really proceeds on         the  erroneous assumption that the mere fact that the  State         Transport Vehicles are given five marks would defeat  public         interest by excluding consideration of all facts except that         the State Undertaking has applied for one or more permits on         a particular route.  As my learned brother Krishna Iyer  has         also  pointed out, this is an unwarranted assumption.   Rule         155A  gives only guidance, but the totality of factors  men-         tioned in Section 47(1)’really decide.           It  was suggested on behalf of the State Transport  Under-         taking  that the obvious capacity of a State Undertaking  to         provide  facilities  which are beyond the reach  of  private         operators, that its actions are subjected to such  constant,         vigilant, and rigorous control on behalf of the public,  and         that  it  is  bound to be so free from any  desire  to  make         profit.s, by sacrificing public interests or convenience  of         passengers that, even if nothing else was considered,  these         presumed advantages would justify the award of five marks on         each   application  of  the State Undertaking for a  permit.         If  this line of reasoning was completely accepted and  car-         ried to its logical conclusion, the provision/or giving five         marks  ,to each application of the State  Undertaking  would         become  quite otiose or unnecessary because, in  that  case,         the State Undertaking would, by relying merely on a presumed         superiority  for purposes of Section 47 (1 ), get a  prefer-         ence  automatically.  The proviso to Section 47 (1 ) of  the         Act  would then, apart from making it clear that  the  State         Undertaking can also apply for permits, for which         405         purpose Section 42(3) was enough, serve: no useful  purpose.         Indeed,  if such a view were to be accepted, the first  part         of the  proviso  to Section 47 (1 ) would seem to rest on  a         false  premise  because   there could be no  case  in  which         "other conditions" could ever be "equal" as between a  State         Transport  Undertaking  and a private operator.   The  State         Transport Service would, in that case, always get a  prefer-         ence.  For  this reason, I do not think that  this  line  of         reasoning could  be pushed too far. It has to be assumed, in         view of the opening words of the proviso to section 47 (1 ),         that  there  may be cases in  which  an application  of  the         basic principle, contained in Section 47 (1) of the Act, may         tilt the balance either in favour of the State   Undertaking         or  the  private operator. The proviso applies  only   where         the  State Undertaking could’ reasonably be deemed to be  in         a  position  of equality as regards  comparative  advantages         offered  by it.  As there cannot, between  such  dis-similar         operating  units, be comparability of conditions  or  advan-         tages  offered unless some rule is flamed and applied  which         could  make comparison reasonably possible, it seems  to  me

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       that  Rule 155A(3) (D)(i) is justifiable on the ground  that         it makes  what  is legally contemplated and permissible also         practicable.                       The  proviso.  to  Section 47 (1  )  reads  as                       follows:                              "Provided  that other conditions  being                       equal,  an  application for a  stage  carriage                       permit from any State Transport Undertaking or                       a co-operative Society registered or deemed to                       have  been registered under any  enactment  in                       force for the time being shall, as far as  may                       be, be given preference over applications from                       individual owners."         An  examination of this proviso shows that an.  equality  of         other  conditions  is contemplated before  any  question  of         giving  preference, merely on the ground that the  applicant         is the State Transport Undertaking or a Cooperative Society,         can arise.  If other conditions are equal, then,  undoubted-         ly,  the choice as between such equals must, if the  proviso         is to be given effect, be made in favour of the State Trans-         port  Undertaking  or a Cooperative  Society  automatically.         That  is  how, in such a case, See. 47(1)  itself  would  be         deemed to operate.              The validity of the proviso is not challenged.  Even if         Article  14 were available for an attack upon it, as  it  is         not during the current emergency, it is clear that the State         Transport  Undertaking  does stand in a  separate  category.         Therefore, it could be found  entitled,  for obviously  good         and  intelligible  reasons,  to  preference   over   private         operators "other conditions being equal".  The narrow  ques-         tion before us.  Thus, appears to me to be nothing more than         whether  the  impugned part of Rule 155A sub-serves or  vio-         lates  the proviso.  The proviso itself is meant to  explain         what  public interest, as visualised by Section  47(1),  re-         quires.   Hence  it appears to me that the validity  of  the         impugned  part  of Rule 155A could be determined  on  purely         legal  grounds as a necessary corollary of the  proviso   to         Section   47(1). The impugned part of the Rule is  there  to         make the proviso workable and not to defeat its provisions.         406             It  is,  however, becoming increasingly  fashionable  to         start  with some‘ theory of what is basic to a provision  or         a chapter  or  in  a statute or even to our Constitution  in         order to interpret and determine the meaning of a particular         provision  or  rule  made to sub-serve  an  assumed  "basic"         requirement.   I think that this novel  method of  construc-         tion  puts, if I may say so, the cart before the  horse.  It         is  apt to seriously mislead us unless the tendency  to  use         such a mode of construction is checked or corrected by  this         Court.  What is basic for a section or a chapter in a  stat-         ute is provided: firstly, by the  words used in the  statute         itself;  secondly, by the context in which a  provision  oc-         curs, or, in other words, by reading the statute as a whole;         thirdly, by the preamble which could supply the "key" to the         meaning  of  the statute in cases of uncertainty  or  doubt;         and, fourthly,  where  some further aid to construction  may         still be needed to resolve an uncertainty by the legislative         history which discloses the wider context or perspective  in         which a provision was made to meet a particular need or   to         satisfy  a  particular purpose.  The last  mentioned  method         consists of an application of the Mischief Rule laid down in         Heydon’s  case  long ago.             If  we start from a theory as to. what the real  purpose         or need is or could be, the danger is that we may be inject-         ing a subjective notion or purpose of our own into what  is,

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       after  all, a legal question of construction or  interpreta-         tion, according to well  recognised  principles, although it         may be necessary, in exceptional eases, to explain or forti-         fy the interpretation adopted in the light of so well under-         stood and. well known a purpose or theory that we could take         judicial  notice of  it and refer to it.  The exposition  of         the  well  known  purpose or  theoretical  foundation  must,         however, generally, flow from and explain an  interpretation         adopted,  on  the  strength  of   legally   acceptable   and         accepted  canons  of construction, if we are  to  avoid  the         danger  of  an a priori determination of the  meaning  of  a         provision  based   on  our own pre-conceived notions  of  an         ideological structure or scheme into which the provision  to         be  interpreted  is somehow fitted.  The  path  of  judicial         certainty  and  predictability  has to be  paved  with  well         settled  principles of construction and interpretation.   We         cannot  let   it develop into a slippery slope  be-set  with         hazardous possibilities. The science of statutory  construc-         tion and interpretation--I think can call it that--rests  on         certain  systematised principles and rules of common  sense,         logic,  and reason.  It can not be transformed into a  happy         hunting  ground for whatever may captivate the  forensic  or         judicial  fancy or become something akin to  poetry  without         even the attractions  of euphony.             For the reasons given above, I find that, on an applica-         tion of the ordinary and well recognised rules of  interpre-         tation,  without  resorting  to any of  the  novel   methods         suggested  by some of the arguments of learned  Counsel  for         the  appellants, the impugned part  of  Rule 155A(3)  (D)(i)         is  valid.  I, therefore, concur with  nay  learned  brother         Krishna Iyer, and hold that the connected appeals and  peti-         tions before us must be dismissed.         M.R.                                          Appeals   dis-         missed.         ?407