02 March 1984
Supreme Court
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ROHTAS INDUSTRIES LTD. & ANR. ETC. Vs THE CHAIRMAN, BIHAR STATE ELECTRICITY BOARD AND OTHERS

Bench: ERADI,V. BALAKRISHNA (J)
Case number: Appeal Civil 2855 of 1982


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PETITIONER: ROHTAS INDUSTRIES LTD. & ANR. ETC.

       Vs.

RESPONDENT: THE CHAIRMAN, BIHAR STATE ELECTRICITY BOARD AND OTHERS

DATE OF JUDGMENT02/03/1984

BENCH: ERADI, V. BALAKRISHNA (J) BENCH: ERADI, V. BALAKRISHNA (J) DESAI, D.A.

CITATION:  1984 AIR  657            1984 SCR  (3)  59  1984 SCALE  (1)465  CITATOR INFO :  RF         1986 SC1999  (5,7,11)  R          1990 SC1851  (36)

ACT:      Electricity (Supply)  Act, 1948-S. 49-Electricity Board divided consumers  into various categories-Consumers of only those categories  already  enjoying  concession  in  general tariff as  incentive to  establish industries  in the  State asked  to   pay  fuel  surcharge-Whether  classification  of consumers and  levy of fuel surcharge on some consumers only arbitrary and violative of Art. 14 of the Constitution.

HEADNOTE:      Section  49  of  the  Electricity  (Supply)  Act,  1948 provided for  the sale  of electricity  by  the  electricity Board to  any person  not being  a  licensee  and  to  frame uniform tariffs  for the  purposes  of  such  supply  having regard, inter alia, to the nature of the supply, the purpose for which the supply is required and other relevant factors, In exercise of the powers conferred by s. 49 of the Act, the respondent Bihar  State Electricity Board had classified the consumers into  ten categories  and had  been, from  time to time, issuing  notifications fixing the tariff and the terms and conditions  for  the  supply  of  electricity  to  those consumers. With  a view  to encouraging the establishment of industries in  the State, the general tariff rate applicable in  respect   of  high  tension  supply  to  industries  and factories had been fixed at rates which were much lower when compared to those applicable to other types of consumers. On 6.4.1979  the  respondent  Board,  in  supersession  of  its earlier   notification   fixing   the   tariff,   issued   a notification revising  the  tariff  for  all  categories  of consumers served  by  it.  Para  16.7  of  the  said  Tariff Notification provided  that the  consumers  of  low  tension industrial service, high tension service, extra high tension service, and railway traction service shall be liable to pay fuel surcharge’  at a  rate to  be determined  every year in accordance with  the formula  set out  in sub-para 2 of that paragraph. The  appellants who  had entered  into agreements with the  respondent Board  for the  supply of  high tension electric current for their factories and were admittedly not licensees,  filed   writ  petitions   in  the   High   Court

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challenging the levy of fuel surcharge on the ground that it was arbitrary and devoid of legal sanction. A Division Bench of the  High Court dismissed the writ petitions. Hence these appeals and  special leave petitions. The appellants’ charge of  discrimination   was  based  on  the  ground  that  only consumers of  low tension  industrial service  high  tension service, extra  high tension  service, and  railway traction service had  been singled  out for being subjected to a levy of surcharge,  while consumers  of electricity for domestic, commercial and  irrigation purposes  were left unaffected by any such burden.      Dismissing the appeals and special leave petitions, ^      HELD; It  is well-established  that where a corporation is an  instrumentality or  an agency of Government it would, in the exercise of its powers and function, 60 be  subject   to  the  same  Constitutional  or  public  law limitations as  apply to the Government and the principle of law inhibiting  arbitrary action  by Government  would apply equally where such a corporation is dealing with the public, whether by  way of giving jobs or entering into relationship with any  person in  any manner  it likes  according to  its sweet will.  The acts  of such  a  corporation  must  be  in conformity with  some principle  which  meets  the  test  of reasonableness and relevance. [71 F-H]      The contention  that the  imposition of  fuel surcharge under paragraph  16.7 of  the 1979  tariff  notification  is arbitrary and  violative of  Art. 14 of the Constitution has no force.  The Board  was perfectly  within  its  rights  in deciding to  restrict the  levy of  fuel surcharge  to those categories of  consumers who  were enjoying the benefit of a concession in  the general  rate and in sparing smaller type of  consumers   such  as  the  agricultural  irrigation  and commercial consumers from being subjected to that burden, in view of the fact that they were already being subjected to a basic  levy   at  substantially   higher  rates.   The  true consequence of  the action  taken by  the Board  is only  to effect a  reduction in  the quantum  of concession  that was being enjoyed  by the  consumers belonging to the industrial and railway  traction categories. The appellants had no case that any  illegality was involved in treating the industrial consumers, as a separate class and granting them the benefit of a  preferential treatment  for the  purpose of fixing the basic  rate   of  levy   for  supply   of   electricity.   A classification which  is legally  valid and  permissible for the grant  of a  concession in  the basic rates will equally hold  good  for  the  purpose  of  a  subsequent  scheme  of distribution of  the burden in the form of fuel surcharge. A classification of  these bulk consumers has a rational nexus with the  object and  purposes of the levy of surcharge. [65 G, 67 B-D, 66-G, 67 D-F]      The argument  that levy  of fuel  surcharge can only be for the  purpose of  recouping the  amounts actually paid by the Board  by way  of ’fuel surcharge’ to the D.V.C. and the U.P. State  Electricity Board  for the  quantities of energy purchased by the Board from these sources and the extra cost that the  Board had  actually to  incur on  fuel consumed in those two  generating stations at Patratu and Barauni has no force. From  the counter  affidavit filed  on behalf  of the Board, it  is seen  that in  respect of  the increase in the cost of  production of  electricity in  the  two  generating stations of  the Board,  the fuel  surcharge has  taken into account only  that part  of the  increase in  cost which  is relatable to  the increased  price of  the coal and oil i.e.

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fuel alone.  In respect  of the  energies purchased  by  the Board from  outside  sources,  namely,  the  Damodar  Valley Corporation  and  the  U.P.  State  Electricity  Board,  the increase in  cost per  unit incurred  by the  Board has been included in  the computation  of the  fuel surcharge. Though the nomenclature given to the levy is "fuel surcharge" it is really a  surcharge levied  to meet  the increased  cost  of generation and  purchase of  electricity and  this  is  made absolutely clearly  in the formula given in para 16.7.2. [67 H, 68 A-F]      There is  no force  in the  contention that  the  words "increase in  the average  unit rate  of purchase of energy" used in  C1 below  paragraph 16.7.2 should be interpreted as taking their  colour from  the contents of paragraph 16.7.3. From a  reading of  these provisions  it is abundantly clear that the  entire increase  in costs incurred in the purchase of energy from the D.V.C. and the U.P. State 61 Electricity Board  has to  go into  the computation  of  the surcharge  leviable   under  paragraph  16.7.  There  is  no ambiguity whatever  in the words used in Cl so as to require the court  to take  light  from  paragraph  16.7.3  for  the purpose of understanding their scope and meaning. [69 B-D]      The  contention   that  the   financial   capacity   of individual industrial  consumers had  not  been  taken  into account while  fixing the revised tariff is devoid of force. It is  not contemplated  by section  49 or  any of the other provisions of  the Act.  that as  amongst consumers  tailing within a  specified  category  different  rates  are  to  be charged  depending   upon  the  financial  capacity  of  the particular consumer to pay. On the other hand, the very core of the  scheme of  section 49  is that  the tariff should be uniform in respect of each class or category. [70 H, 71 A-B]      It  is   found  that   notwithstanding  the   mandatory provision contained in s.59 of the Act obliging the Board to carry its operations and adjust its tariffs in such a way as to ensure  that the  total revenues  earned in  any year  of amount shall, after meeting all expenses properly chargeable to revenue  leave, such surplus as the State Government may, from time  to time,  specify, the  Board  has  been  selling energy at rates which are lower than the actual post insured by it  per  unit  of  production.  Such  being  the  factual situation, there  is absolutely  no basis for the contention that the  tariff fixation effected by the Board suffers from the vice  of arbitrariness  and is  liable to  be interfered with by the Court on that ground. [73 B, 72 A-C, 73 C]

JUDGMENT:      CIVIL APPELLATE  JURISDICTION: Civil Appeals Nos. 2855- 56 of 1982.      Appeals by  special leave  from the  Judgment and Order dated the  9th April,  1982  of  the  Patna  High  Court  in C.W.J.C. No. 3503/ 81 & 504 of 1982.                             WITH         Civil Appeals Nos. 2857-58 & 2859-60 of 1982      Appeals by  Special leave  from the  Judgment and Order dated the 9th/10th February, 1982 of the Patna High Court in C.W.J.C. Nos. 1026/82,1855/81,1516/81(R), 1355/81(R).,                             AND       Special Leave Petition (Civil) No. 2904 of 1982.      From the  Judgment and  Order dated  the 8th  December, 1981 of the Patna High Court in Civil Writ Jurisdiction Case No. 1237 of 1981.

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    Dr. Shankar  Ghosh, Parveen  Kumar, Padam Khaitan, C.A. Vaidyanathan N.R.  Khaitan for  the Appellants in C.A. 2855- 56/82. 62      A.K. Sen, Padam Khaitan, Parveen Kumar and N.R. Khaitan for the Appellants in C.A. Nos. 2857-58/82.      C.S. Vaidyanathan,  Anil Kumar  Sharma, and Mr. Parveen Kumar for the Appellants in CA. Nos. 2859-60/82.      K.K. Venugopal, C.S. Vaidyanathan for the Petitioner in SLP Nos. 2904/82.      L.N. Sinha, Att. General, Ram Balak Mehto, Pramod Swaru and P.P. Singh for the Respondents in all the appeals & SLP.      The Judgment of the Court was delivered by      BALAKRISHNA ERADI,  J. These appeals (by special leave) and the  Special Leave  Petition  involve  common  questions concerning the validity of the supplementary bills issued to the appellants by the 1st respondent-Bihar State Electricity Board-for "fuel  surcharge" as  per the revised tariff dated 1st April,  1979, and hence they were heard together. Having regard to  the fact  that by  reason of interlocutory orders passed by  this Court,  the  realisation  of  large  amounts demanded from  the appellants  by the  respondent by  way of charges for  electric energy supplied by it stood stayed and the consequent  urgency in  passing final  orders  in  these cases, as  soon as  the hearing  was completed we passed the following order announcing the conclusion reached by us:           "All  these   Civil  Appeals   and  Special  Leave      Petition are  dismissed with  costs in  each case.  All      interim orders made in each of these matters at various      stages are vacated. Reasons will follow". We now  proceed to  state the reasons in support of the said conclusion.      The Bihar  State Electricity  Board hereinafter  called ’the  Board’)  is  incorporated  under  Section  12  of  the Electricity (Supply)  Act 1948  (hereinafter referred  to as ’the Act’).  The general  powers and duties of the Board are set out  in Section  18. Thereunder  the Board has the duty, inter alia,  to arrange  for the  supply of electricity that may be  required within  the State  and for the transmission and distribution  of the  same in  the  most  efficient  and economic manner,  with particular  reference to  those areas which are  not, for  the time  being, supplied or adequately supplied with  electricity. Section  49  of  the  Act  makes provision for  the sale  of  electricity  by  the  Board  to persons other than the licensees and to frame uniform 63 triffs for  the purposes  of such supply. That section is in the following a terms:           "49. (1) Subject to the provisions of this Act and      of regulations,  if any, made in this behalf, the Board      may supply  electricity  to  any  person  not  being  a      licensee upon  such terms  and conditions  as the Board      thinks fit  and may  for the  purposes of  such  supply      frame uniform tariffs.      (2)   In fixing  the uniform  tariffs, the  Board shall           have  regard  to  all  or  any  of  the  following           factors, namely :-      (a)   the nature  of the  supply and  the purposes  for           which it is required;      (b)   the coordinated  development of  the  supply  and           distribution of  electricity within  the State  in           the most  efficient and  economical  manner,  with           particular reference  to such development in areas           not for the time being served or adequately served           by the licensee;

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    (c)   the simplification and standardisation of methods           and rates of charges for such supplies;      (d)   the  extension  and  cheapening  of  supplies  of           electricity to sparsely developed areas.      (3)   Nothing  in  the  foregoing  provisions  of  this           section shall  derogate  from  the  power  of  the           Board, if  it considers  it necessary or expedient           to  fix   different  tariffs  for  the  supply  of           electricity to  any person  not being  a licensee,           having regard  to the geographical position of any           area, the  nature of  the supply  and purpose  for           which  such  supply  is  required  and  any  other           relevant factors.      (4)   In fixing the tariff and terms and conditions for           the supply  of electricity,  the Board  shall  not           show undue preference to any person."      In  exercise  of  the  power  conferred  by  the  above section, the  Board has  been, from  time to  time,  issuing notifications fixing the 64 tariff and  the terms  and  conditions  for  the  supply  of electricity  to   the  various   classes  of  consumers.  In supersession of  the, tariff rates till then obtaining under an  earlier   notification,  the   Board  by   its   "tariff notification  1979"   published   in   the   Bihar   Gazette Extraordinary No.355 dated 6.4.1979, issued a revised tariff for all  categories of  consumers served  by  it.  The  said tariff was to take effect from 1st April, 1979.      The  appellants   are  companies  having  factories  in different parts  of the State to Bihar and they have entered into agreements  with the  Board for  supply of high tension electric current.  The  agreements  so  executed  are  in  a standard  form  containing  substantially  identical  terms. Annexure I  in the Writ Petition C.W.J.C. No. 1855/81 out of which C.A.  28 58/82  arises in  a  copy  of  the  agreement entered into  by M/s Usha Martin Black (Wire Rods) Ltd. with the Board  on 18.8.1961. In clause 4 of the agreement, it is stipulated   that the  consumers shall  pay to  the supplier (Board for) the energy supplied and registered by the meters "at the rates from time to time in force and paid by similar consumers". It  has been  further provided in clause 11 that the agreement should be read and construed as subject in all respects to  the provisions  of the  Indian Electricity  Act 1910 and  the rules for the time being in force there under. After the introduction of the revised tariffs, 1979, all the appellants  continued  to  draw  and  consume  high  tension electric energy in their factories.      Para 16.7  of the  Tariff Notification,  1979, provides that the  consumers of  low tension industrial service, high tension service,  extra high  tension service,  and  railway traction service  shall be liable to pay ’fuel surcharge’ at a rate  to be  determined every  year In accordance with the formula set  out in  sub-para  (2)  of  the  said  paragraph (16.7.2). This levy of fuel surcharge was in addition to the other charges  specified in  the tariff schedule. During the course of  the year  1979, fuel surcharge a provisional rate of one  paise per  unit was  initially levied  and that  was subsequently increased  to three  paise per unit, again on a provisional  basis.  In  the  final  bills  issued  for  the financial year  1979-80 the  fuel surcharge  was  levied  at 6.242 paise  per unit.  Along with  the final  bill of  fuel surcharge for  the year  1979-80, a provisional bill of fuel surcharge for  the year  1980-81  was  also  issued  to  the appellant companies  demanding payment  of surcharge  at the rate of eight paise per unit

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65      Thereupon the  appellants filed  Writ Petitions  in the High Court  of Patna contending that the provision contained in Paragraph 16.7 in the Tariff Notification of 1979 for the levy fuel  surcharge is  devoid of  legal  sanction  and  is arbitrary and  void. The  charge of  arbitrariness  levelled against the  imposition of  fuel surcharge  was based on the ground  that   only  consumers  of  low  tension  industrial service, high  tension service,  extra high tension service, and railway  traction service had been singled out for being subjected  to  a  levy  of  surcharge,  while  consumers  of electricity for domestic, commercial and irrigation purposes were  left   unaffected  by   any  such  burden.  A  further contention was  also raised  that the  bills issued  to  the petitioners were  not even in accordance with the provisions of the  tariff notification and the demands made against the appellants were  in excess of what was warranted even by the impugned  notification.   Eight  writ  petitions,  of  which C.W.J.C. 1237  of 1981,  filed by M/s Shriram Bearings Ltd., Ranchi (Petitioner  in SLP  No.  2904/1982)  was  apparently treated by  common consent  as the main case, and were heard together as one single batch by a Division Bench of the High Court. By  a  detailed  and  well-considered  judgment,  the Division Bench  rejected all  the contentions  raised by the petitioners and dismissed the Writ Petitions after recording an undertaking given by the Board that certain small amounts which were found to have been charged in the bills in excess of  what   was  payable  by  the  appellants  on  a  correct computation of  the surcharge  would be adjusted in the next bills to  be issued  to them.  Writ  Petitions  subsequently filed in  the High  Court by  the appellants  in  the  other appeals were  later dismissed  in limine  by separate  short judgments, following the decision of the Divisional Bench in C.W.J.C. 1237 of 1981. Hence these appeals and special leave petitions by the appellant companies.      At the  outset, we  may dispose of the contention urged on behalf  of some  of the  appellants that the levy of fuel surcharge under  the impugned tariff notification (paragraph 16.7) is discriminatory and hence violative of Article 14 of the Constitution.  Sub-section 3  of  Section  49  expressly authorises the Board to fix different tariffs for the supply of electricity  to any  person not  being a licensee, having regard, inter alia, to the nature of the supply, the purpose for which the supply is required and other relevant factors. The power  to classify  the consumers  into  different  into categories and to fix differen- 66 tial tariffs  has thus  been conferred  on the  Board by the Section itself.  The Constitutional validity of this Section has  been   upheld  by   this  Court  in  Maharashtra  State Electricity  Board   v.  Kalyan   Borough   Municipality   & Another(’).      The expression "licensee" means a person licensed under Part II  of the  Indian Electricity  Act,  1910,  to  supply energy or a person who has obtained licence under Section 28 of that  Act to  engage in  the business of supplying energy through  definition   in  Section  2  (6).  Admittedly,  the appellants before  us are  not licensees. They are consumers receiving high  tension supply  to their  factories. For the purpose of  tariff fixation,  the Board  has classified  the consumers into  10 categories, viz.. "domestic", "commercial (i)", commercial (ii)", "street light", "irrigation", "light tension  industrial"   (small  scale   industrial  upto  100 h.p.),"11 k.v.  h.t.s.", "33  k.v.h.t.s.", "132 k.v. h.t.s." and "railway  traction (25  k.v.)".  It  is  seen  from  the

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materials on  record for  us  that  the  industries  between themselves consume  nearly 65%  of  the  total  quantity  of energy supplied  by the  Board. Apparently  with a  view  to encouraging the  establishment of  industries in  the State, the general  tariff  rate  applicable  in  respect  of  high tension supply to industries and factories has been fixed at rates which are much lower when compared to those applicable to  other   types  of  consumers.  While  the  general  rate applicable for  supply of  high tension  electric energy for industries of  the class  to which the appellants belong was 22 paise  per  unit,  consumers  belonging  to  "commercial" categories were charged at rates ranging between 48 paise to 58 paise  per unit, "agricultural" consumers at 29 paise per unit, "low tension" consumers at 34 to 38 paise per unit and "domestic" consumers at rates ranging between 38 to 43 paise per unit.  Thus, in the fixation of the general tariff rate, a  substantial  concession  has  been  shown  in  favour  of industrial low  tension  and  high  tension  consumers.  The appellants have  no case that any illegality was involved in treating the  industrial consumers,  as a separate class and granting them  the benefit  of a  preferential treatment for the purpose  of fixing  the basic rate of levy for supply of electricity. The  stand taken  by the  Board is  that it was found absolutely necessary at the time of the revised tariff fixation effected  in 1979 to augment its revenue by levying of the  additional fuel  surcharge in  order to  offset  the heavy increase  in expenditure and after taking into account all relevant  facts and  circumstances, it  was  decided  to distribute that burden amongst the privileged class of 67 consumers, namely  those  belonging  to  categories  of  low tension industrial service, high tension service, extra high tension service  and railway  traction service.  Even  after taking into  account the fuel surcharge so levied under 1979 tariff, the  rates applicable to high tension consumers like the petitioners  range between  40.31 paise  and 58.80 paise per unit only, while the commercial (ii) consumer has to pay 71.33 paise  per unit  and even the domestic consumer has to pay 48  paise per  unit. The position that obtains under the 1981 tariff  which also  has been  challenged by some of the appellants is  substantially similar.  In our  opinion,  the Board  was  perfectly  within  its  rights  in  deciding  to restrict the  levy of  fuel surcharge to those categories of consumers who  were enjoying  the benefit of a concession in the general  rate and  in sparing  smaller type of consumers such  as   the  agricultural,   irrigation  and   commercial consumers from  being subjected  to that  burden, in view of the fact  that they  were already being subjected to a basic levy at  substantially higher rates. The true consequence of the action  so taken  by the  Board  is  only  to  effect  a reduction in  the  quantum  of  concession  that  was  being enjoyed by  the consumers  belonging to  the industrial  and railway  traction  categories.  A  classification  which  is legally valid  and permissible for the grant of a concession in the basic rates will equally hold good for the purpose of a subsequent  scheme of  distribution of  the burden  in the form of fuel surcharge. In this context, it is also relevant to remember  that the  levy of surcharge was necessitated by reason of the extra expenditure which the Board had to incur in the  generation of  electricity in the two power stations run by  the Board  and in the purchase of power from the two outside sources,  namely, the  D.V.C.  and  the  U.P.  State Electricity Board  and 65%  of the  total quantity of energy supplied by  the Board  is consumed  by the  industrial  and railway traction  consumers. A  classification of these bulk

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consumers has  a rational nexus with the object and purposes of the  levy of  surcharge. Having regard to all these facts and circumstances,  we find  no substance  in the contention advanced by  some of  the appellants  that the imposition of fuel surcharge  under paragraph  16.7 of  the 1979 tariff is arbitrary and violative of Art. 14 of the Constitution.      The next  argument advanced on behalf of the appellants was that  even if  the Board is legally entitled to levy the fuel  surcharge,  that  can  only  be  for  the  purpose  of recouping the  amounts actually  paid by the Board by way of ’fuel surcharge’  to the  Damodar Valley Corporation and the U.P. State  Electricity Board  for the  quantities of energy purchased by the Board from these sources and the extra cost 68 that the  Board had  actually to  incur on  fuel consumed in those two  generating stations  at Patratu and Barauni. From the counter  affidavit filed  on behalf  of the Board, it is seen that  in  respect  of  the  increase  in  the  cost  of production of  electricity in the two generating stations of the Board,  the fuel  surcharge has  taken into account only that part  of the increase in cost which is relatable to the increased price  of the  coal and  oil i.e.  fuel alone. The increase in expenditure referable to the enhancement in cost of the  energy generated  on other  accounts such  as wages, maintenance, etc.  has not  been taken  into account  in the fuel surcharge.  Such increase  in  cost  of  production  on account of those other factors has been offset by a revision of the  basic general  tariff by  16.5 per  cent payable not only by  the  industries  but  by  all  classes  except  the agriculturist class. In respect of the energies purchased by the Board  from outside  sources, namely, the Damodar Valley Corporation  and  the  U.P.  State  Electricity  Board,  the increase in  cost per  unit incurred  by the  Board has been included in the computation of the fuel surcharge. We see no substance whatsoever  in  the  contention  advanced  by  the appellants that  only such  amounts, if  any, as  might have been paid  by the  Board to  the D.V.C.  and the  U.P. State Electricity Board  as and  by way  of fuel  surcharge can go into the  computation of  the fuel  surcharged levied by the Board under  paragraph 16.7  of the  1979 tariff. Though the nomenclature given  to the  levy is  "fuel surcharge"  it is really a  surcharge levied  to meet  the increased  cost  of generation and  purchase of  electricity and  this  is  made absolutely clear in the formula given in para 16.7.2.      The formula  for determining the fuel surcharge set out in paragraph 16.7.2 reads:             "S = [A1XA3+B1XB3+C1XC3+D1XD3+E1XE3/                      [A2+B2+C2+D2+E2]".      This is followed by detailed explanation as to what the different alphabets  used in the numerator and denominate or signify. The explanation given in respect of C1 is "Increase in the  average unit  rate of purchase of energy from D.V.C. during the year for which the surcharge is to be calculated. The said  increase to be calculated with respect to the base year 1977-78."  C3 stands  for "units  purchased from D.V.C. during the year". Likewise, E1 and E3 have been explained as "Increase in the average unit rate of 69 purchase of  energy from  Uttar  Pradesh  State  Electricity Board  during   the  Year  for  which  surcharge  is  to  be calculated, the  said increase to be calculated with respect to the  base Year  1977-78" and  "units purchased from Uttar Pradesh State Electricity Board" respectively.      We see no force in the contention put forward on behalf of some  of the  appellants that  the words" increase in the

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average unit  rate of  purchase of  energy" used in C1 below paragraph 16.7.2  should  be  interpreted  as  taking  their colour from the contents of paragraph 16.7.3. From a reading of these  provisions it  is abundantly clear that the entire increase in cost incurred in the purchase of energy from the D.V.C. and  the U.P.  State Electricity Board has to go into the computation  of the  surcharge leviable  under paragraph 16.7.  The  contention  to  the  contrary  advanced  by  the appellants is  therefore, only  to be  rejected. There is no ambiguity whatever  in the words used in C1 so as to require us to  take light  from paragraph  16.7.3 for the purpose of understanding their scope and meaning.      It was  strongly urged on behalf of the appellants that the provision  in Cl  for increase  in the  average rate  of price of  energy from  the  D.V.C.  to  be  calculated  with respect to  the base year 1977-78 is arbitrary in as much as in  fixing   the  basic   tariff  as   per   the   ’impugned notification’ of  1979, the  difference in cost between Year 1977-78 and  the current Year 1979-80 has already been taken into account.  From the counter affidavit and the statements filed in  the High  Court on  behalf of the respondent Board which form part of the record before us in these appeals, it is seen that only the fuel surcharge accrued during the Year 1977-78 had  been merged  while fixing the revised rates for energy and it was specifically mentioned in paragraph 2.5 of the resolution of the Board containing the proposals for the tariff revision,  1979, which  the Board  forwarded  to  the State Government  that only  the  fuel  surcharge  that  had accrued during  1977-78 was  being  merged  in  the  revised tariff rates  and that  "the subsequent increase or decrease in the  cost of  fuel or  the cost  of imported energy will, therefore, reflect in the fuel surcharge hereafter". Similar is the position with respect to the tariff revision effected in 1981.  Hence there  is  no  factual  foundation  for  the argument that  there has been a double neutralisation of the increase in  the fuel  surcharge in  respect of  the  energy purchased by the Board from outside sources.      Paragraph 16.7.4 of the tariff notification states that the fuel  surcharge for a financial year shall be calculated by the Board after 70 the expiry  of the financial year and until such calculation is actually  made, fuel  surcharge may be levied during each financial year at a rate provisionally calculated on monthly or quarterly  or half-yearly  basis as decided by the Board, and in  case of  short or excess realisation, the same is to be adjusted  in the  next bill to be served on the consumer. Based on  these provisions,  it was faintly argued on behalf of some  of the  appellants that  the  Board  was  under  an obligation to  issue provisional  bills in  respect of  fuel surcharge during  the course  of each  financial Year and on account of  its failure to do so, the appellants were unable to include  the said  element in  their price  structure  in respect of  cement, paper  and  vanaspati  produced  in  the factories of  some of the appellants. This contention has to be  rejected   for  two   reasons:  firstly,  the  provision contained in  the aforesaid paragraph of the notification is purely an  enabling one  and it  dose not cast any mandatory obligation on  the Board  to issue any provisional bills for fuel surcharge,  monthly, quarterly,  or half-yearly  during the course  of each  financial  year;  secondly  apart  from merely  putting  forward  such  a  plea  in  the  course  of arguments before  us the  appellants have  not furnished any factual data as to how and in what manner they had fixed the price structure  for the  different products produced in the

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appellants’ factories.      Yet another point urged on behalf of the appellants was that under Section 49 of the Act, while exercising the power of framing  uniform tariffs,  the Board  was under a duty to apply its mind to all relevant factors but there had been an omission to  discharge the  said mandatory  duty inasmuch as the capacity of the concerned industry to pay for the energy at the rate proposed to be fixed, which is a highly relevant factor, had  not been taken into account at all. Clauses (a) to (d) of sub-section 2 of Section 49 enumerated the various matters which  the Board  shall have regard to in fixing the uniform tariffs  and the capacity of any particular industry to bear  the energy  charge at  the proposed rate of levy is not included  in the  said enumeration.  Under the scheme of the tariff  fixation incorporated in the section, the tariff is to be uniform subject to the classification of  consumers into different  categories Under  sub-section 3  of the said section, the  classification  of  the  consumers  into  such different categories  is to  be made  only with reference to the nature  of the  supply, the  purpose for which supply is required the  geographical position  of any  area and  other like relevant  factors. It  is not  contemplated by the said section or  any of  the other  provisions of the Act that as amongst 71 consumers falling  within  a  specified  category  different rates  are  to  be  charged  depending  upon  the  financial capacity of  the particular  consumer to  pay. On  the other hand, the  very core of the scheme of Section 49 is that the tariff should  be  uniform  in  respect  of  each  class  or category. Hence  the  attack  levelled  against  the  tariff fixation on  the aforesaid  ground, that  a relevant factor, namely, that the financial capacity of individual industrial consumers had  not been  taken into  account, is  devoid  of force.      The appellants  in some  of the appeals have challenged the subsequent  tariff fixation of 1981 also on grounds that are substantially the same as those which we have dealt with above. For  the reasons  already indicated  by us,  none  of those grounds can be accepted as correct or tenable.      It was  urged on  behalf of  the  appellants  that  the supply of  electricity being a monopoly service conducted by an agency  of the  State, namely,  the  Board,  it  must  be carried  out  reasonably  and  not  arbitrarily,  that  such reasonableness should be reflected in the price fixation and if the  prices fixed  are arbitrary,  they are  liable to be called in  question before the Courts on the said ground. In support of  the above  contention, reliance  was  placed  by counsel for the appellants on the decisions of this Court in Akadasi Padhan v. State of Orissa(1), Rashbihari Panda, etc. v. State of Orissa,(2) Vrajlal Manilal & Co. & Ors. v. State of Madhya  Pradesh &  Ors.,(3) Ramana  Dayaram Shetty v. The international Airport  Authority of  India and Ors.(4) It is well  established   that   where   a   corporation   is   an instrumentality or  an agency of Government it would, in the exercise of  its powers and function, be subject to the same Constitutional or  Public Law  limitations as  apply to  the Government and  the principle  of law  inhibiting  arbitrary action by  Government  would  apply  equally  where  such  a corporation is  dealing with  the public,  whether by way of giving jobs  or entering  into contracts or otherwise and it cannot act  arbitrarily and enter into relationship with any person in  any manner  it likes according to its sweet will. The acts  of such  a corporation  must be in conformity with some principle  which meets  the test  of reasonableness and

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relevance. In  the  case  before  us,  the  appellants  have totally failed  to establish that the rates specified in the impugned tariff notifications of 1979 and 1981 are arbitrary and unreasonable. 72      Section 59  of the  Act as  it  now  stands  after  the amendment of 1978 is in the following terms:           "59. (1)  The Board shall, after taking credit for      any subvention  from the State Government under section      63, carry  on its  operations under this Act and adjust      its tariffs  so as to ensure that the total revenues in      any year  of account  shall, after meeting all expenses      properly chargeable  to revenues  including  operating,      maintenance and  management expenses, taxes (if any) on      income and  profits, depreciation  and interest payable      on all debentures, bonds and loans, leave such surplus,      as  the  State  Government  may,  from  time  to  time,      specify.           (2) In  specifying the  surplus under  sub-section      (1), the  State Government  shall have due regarding to      the  availability   of  amounts   accrued  by   way  of      depreciation and  the liability  for loan  amortization      and leave.           (a) reasonable  sum to contribute towards the cost      of capital works; and           (b) where  in respect of the Board, a notification      has been issued under sub-section (1) of section 12A, a      reasonable sum by way of return on the capital provided      by the  State Government  under Sub-section (3) of that      section and  the amount of the loans (if any) converted      by the  State Government into capital under sub-section      (1) of section 66A." Under the  above provision,  the Board  is under a statutory obligation to carry on its operations and adjust its tariffs in such a way as to ensure that the total revenues earned in any year  of  account  shall,  after  meeting  all  expenses properly chargeable  to revenue,  leave such  surplus as the State Government may, from time to time, specify. The tariff fixation  has,   therefore,  to  be  so  made  as  to  raise sufficient revenue  which will not merely avoid any net loss being incurred  during the  financial year but will ensure a profit being earned, the rate of minimum profit to be earned being such  as may be specified by the State Government. The learned Attorney  General appearing  on behalf  of the Board has  placed  before  us  tabulated  statements  showing  the working results  (financial)  of  the  Board  in  the  years subsequent to 1977-78. It is found therefrom that the net 73 result of the Board’s working in each of the year 1978-79 to 1981-82 was  a substantial  deficit or  loss. The deficit in 1978-79 was  Rs. 15.31  crores, in 1979-80 Rs. 10.21 crores, in 1980-81 Rs. 32.69 crores and in 1981-82 Rs. 18.60 crores. The statement also shows that the revenue earned per unit of electric energy  sold was much lower than the actual cost of production incurred  by the  Board per  unit.  The  cost  of production per  unit in  the four  years aforementioned  was 51.10 p.,  65.10 p.,  73.86 p.,  and 87.16  p. respectively, whereas the  revenue per  unit was  only 3848  p., 47.17 p., 53.07 p.,  and 66.39  p. respectively. It is thus found that notwithstanding has  the mandatory  provision  contained  in Section 69  the Act,  the Board been selling energy at rates which are  lower than  of the actual cost incurred by it per unit of  production. Such being the factual situation, there is absolutely no basis for the contention urged on behalf of the appellants  that the  tariff fixation  effected  by  the

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Board suffers  from the voice of arbitrariness and is liable to be interfered with by the Court on the ground. As pointed out by  this Court  in Prag  Ice &  Oil Mills and another v. Union of India, 1 in the ultimate analysis, the mechanics of price fixation  is necessarily to be left to the judgment of the executive  and unless it is patent that there is hostile discrimination against  a class  of persons,  the processual basis of  price fixation is to be accepted in the generality of cases as valid.      Some of  the appellants  have endeavored to persuade us to go  into the  minutest details  of the  mechanism of  the tariff fixation  effected by  the Board  in an  endeavour to demonstrate in  relation thereto  that a  factor here  or  a factor there which ought to have been taken into account has been ignored.  We have  declined to  go into  those  factors which are  really in the nature of matters of price fixation policy and  the Court  will be exceeding its jurisdiction if it to  embark upon  a scrutiny of matters of this kind which are essentially in the domain of the executive to determine, subject, of course, to the Constitutional limitations.      The  conclusion   that  emerges   from  the   foregoing discussion is  that the  High Court  was perfectly  right in upholding the  validity of the impugned tariff notifications of 1979 and 1981, and these appeals and the S.L.P. have only to be dismissed. H.S.K.                      Petitions & Appeals Dismissed. 74