31 July 1989
Supreme Court
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MAHABIR KISHORE & ORS. Vs STATE OF MADHYA PRADESH

Bench: SAIKIA,K.N. (J)
Case number: Appeal Civil 1826 of 1974


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PETITIONER: MAHABIR KISHORE & ORS.

       Vs.

RESPONDENT: STATE OF MADHYA PRADESH

DATE OF JUDGMENT31/07/1989

BENCH: SAIKIA, K.N. (J) BENCH: SAIKIA, K.N. (J) OZA, G.L. (J)

CITATION:  1990 AIR  313            1989 SCR  (3) 596  1989 SCC  (4)   1        JT 1989 (3)   327  1989 SCALE  (2)276

ACT:     Indian  Contract  Act--Section 72--Suit  for  refund  of money  paid by mistake of law----Period of  limitation-three years.     Limitation  Act  1968--Section 17(1)  (c)  and  Schedule Article  113 Suit for refund of money paid under mistake  of law--Period of limitation-Three years--Date of knowledge  of particular law being declared void--Date of judgment of  the competent court declaring that law void.     Words and phrases: ’Nul ne doit senrichir aux depens des autres’ --’Indebitatus assumpsit’--’Aequum et bonum ’--Mean- ing of.

HEADNOTE:     The  appellant firm was allotted contracts for  manufac- ture and sale of liquor for the year 1959 and for the subse- quent  periods from 1.1. 1960 to 31.3.1961  for  Rs.2,56,200 and  Rs.4,71,900  respectively by the M.P.  Govt.  who  also charged  7-1/2%  over the auction money as  mahua  and  fuel cess.  As writ petitions challenging the government’s  right to  charge this 7-1/2% were pending in the M.P. High  Court, the Govt. announced that it would continue to charge it  and the question of stopping it was under consideration of Govt. whose  decision  would be binding on  the  contractors.  The appellant  firm paid for the above contracts a  total  extra sum  of  Rs.54,606.00. On 24.4.1959 the M.P. High  Court  in Surajdin  v.  State  of M.P., [1960] MPLJ  39  declared  the collection  of 7-1/2% as illegal. Even after  this  decision the  Govt. continue to charge 7-1/2% extra money.  Again  on 31.8.1961, the High Court of Madhya Pradesh in N.K. Doongaji v. Collector, Surguja, [1962] MPLJ. 130 decided that  charg- ing  of  7-1/2%  by the Govt. above the  auction  money  was illegal. Appellants came to know of this decision only in or about September, 1962.     On 17.10.1964 the appellants gave a notice under section 80 C.P.C. to the Govt. of Madhya Pradesh requesting for  the refund  of Rs.54,606.00. failing which a suit  for  recovery would be filed and later they instituted a civil suit in the court of additional District Judge, Jabalpur on  24.12.1964. The  Govt.  resisted the suit inter alia on  the  ground  of limitation. The Trial Court held that the suit was barred by

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597 limitation  and dismissed it. The High Court also  dismissed the appeal. The appellants then came up in appeal by special leave.  While allowing the appeal and remanding the suit  to the Trial Court for decision on merits. This Court,     HELD:  ’Nul ne doit senrichir aux depens des autres’  No one  ought to enrich himself at the expense of others.  This doctrine at one stage of English common Law was remedied  by ’indebitatus assumpsit’ which action lay for money’ had  and received  to  the use of the plaintiff’. It lay  to  recover money paid under a mistake or extorted from the plaintiff by duress of his goods, or paid to the defendant on a consider- ation  which  totally failed. On abolition  of  ’indebitatus assumpsit’,  courts  used to imply a promise to  pay  which, however, in course of time was held to be purely fictitious. [601G-602A]     Courts is England have since been trying to formulate  a juridical basis of this obligation. Idealistic  formulations as  ’aequum et bonum’ and ’natural justice’ were  considered to  be  inadequate and the more legalistic basis  of  unjust enrichment  is formulated. The doctrine of  ’unjust  enrich- ment’ is that in certain situations it would be ’unjust’  to allow  the defendant to retain a benefit at the  plaintiff’s expense.  The relatively modern principle of restitution  is of the nature of quasi contract. But the English law has not yet recognised any generalised right to restriction in every case of unjust enrichment. [602H-603B]     The principle of unjust enrichment requires; first, that the  defendant  has  been ’enriched’ by  the  receipt  of  a "benefit"; secondly. that this enrichment is "at the expense of  the  plaintiff" and thirdly, that the retention  of  the enrichment be unjust. This justified restitution. Enrichment may  take  the  form of direct advantage  to  the  recipient wealth  such as by the receipt of money or indirect one  for instance  where  inevitable expense has been  saved.  [603C- 603D]     There is no doubt that the suit in the instant case,  is for  refund of money paid by mistake and refusal  to  refund may  result in unjust enrichment depending on the facts  and circumstances of the case. [604D]     Though  there is no constitutionally provided period  of limitation  for petitions under Article 226, the  limitation prescribed  for such suits has been accepted as  the  guide- line,  though little more latitude is available in the  for- mer. [604F] For filing a writ petition to recover the money paid under a mis- 598 take of law the starting point of limitation is three  years is  prescribed by Article 113 of the Schedule to the  Indian Limitation  Act, 1963 and the provisions of S.  17(1)(c)  of the Act will be applicable so that the period will begin  to run from the date of knowledge of the particular law, where- under the money was paid, being declared void and this could be  the date of the judgment of a competent court  declaring that law void. [609B]     Moses  v. Macferlan, [1760] 2 Burr. 1005 at  1012;  Sin- clair  v. Brougham, [1914] AC 398; Fibrosa Spolka  v.  Fair- bairn  Lawson, [1943] AC 32 = (1942) 2 All E.R.  122;  Sales Tax  Officer  v.  Kanhaiya Lal, [1959] SCR  1350;  M/s  Budh Prakash Jai Prakash v. Sales Tax Officer, Kanpur, [1952] ALJ 332; Kiriri Cotton Co. Ltd. v. Ranchhoddas Keshavji  Dewani, [1960]  AC  192; D. Cawasji & Co. v. The State of  Mysore  & Anr., [1975] 2 SCR 511; Madras Port 7rust v. Hymanshu Inter- national, [1979] 4 SCC 176; Shri Vallabh Glass Works Lid. v.

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Union of India, [1984] 3 SCR 180; Commissioner of Sales Tax, U.P.v. M/s. Auriaya Chamber of Commerce Allahabad, [1986]  3 SCC  50;  Sales  Tax Officer v. Budh  Prakash  Jai  Prakash, [1954]  5 STC 193; Salonah Tea Co. Ltd. & Ors.  v.  Superin- tendent of Taxes, Nowgong & Ors., [1988] 1 SCC 401; Atiabari Tea  Co. Ltd. v. State of Assam, AIR 1961 SC 232;  Khyerbari Tea  Co.  Ltd. v. State of Assam, [1964] 5  SCR  975;  Loong Soong Tea Estate’s, case decided on July 10, 1973;  Suganmal v. State of M.P., AIR 1965 SC 1740; Tilokchand Motichand  v. H.B. Munshi, [1969] 2 SCR 824, referred to.

JUDGMENT:     CIVIL APPELLATE JURISDICTION: Civil Appeal No. 1826  (N) of 1974.     From the Judgment and Order dated 6.4.1972 of the Madhya Pradesh High Court in F.A. No. 23 of 1966.     M.V. Goswami for the Appellants.     U.A. Rana and S.K. Agnihotri for the Respondents.     The Judgment of the Court was delivered by     SAIKIA,  J. This plaintiffs’ appeal by special leave  is from the appellate Judgment of the Madhya Pradesh High Court dismissing  the appeal upholding the Judgment of  the  trial court  dismissing  the  plaintiffs’ suit on  the  ground  of limitation.     A  registered firm Rai Saheb Nandkishore Rai  Saheb  Ju- galki- 599 shore  (Appellants) was allotted contracts  for  manufacture and  sale of liquor for the calendar year 1959 and  for  the subsequent   period  from  1.1.  1960  to  31.3.  1961   for Rs.2,56,200.00  and  Rs.4,71,900.00,  respectively,  by  the Government of Madhya Pradesh who also charged 7-1/2 per cent over  the  auction  money as mahua and fuel  cess.  As  writ petitions challenging the Government’s right to charge  this 7-1/2  per  cent  were pending in the  Madhya  Pradesh  High Court,  the Government announced that it would  continue  to charge it and the question of stopping it was under  consid- eration of the Government whose decision would be binding on the  contractors.  The firm (appellants) thus paid  for  the above contracts a total extra sum of Rs.54,606.00.     On  17.10.1961 the Under Secretary to Government,  M.P., Forest Department, Bhopal wrote the following letter No.  10 130-X/61 (Exhibit D-23) to the Chief Conservator of Forests, Madhya Pradesh, Rewa:               "Subject: Levy of cess on liquor  contractors.               Under  former M.P. Government (Forest  Depart-               ment) memo No. 4595-CR-73-XI dated 25th  July,               1953,  a  royalty  at 7-1/2 per  cent  of  the               license  fee for liquor shops was  imposed  on               liquor contractors to cover the value of mahua               & fuel extracted from the reserved or protect-               ed forests by the contractors for their still.                        2.  The  M.P. High  Court  has  since               decided that the levy of the aforesaid cess is               illegal and the cess cannot be recovered  from               the  liquor contractors. In pursuance of  this               decision, Government desires that all process-               es  whenever issued or proceedings  instituted               against liquor contractors for recovery of the               mahua  or fuel cess should forthwith be  with-               drawn  and  no revenue  recovery  certificates               should be issued in respect of this cess.                        3.  Simultaneously no free supply  of

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             mahua or fuel should be permitted by virtue of               the imposition mentioned above.               Immediate compliance is requested.                    No   .....   X/61             Dt.  Bhopal               the  .....  661               Copy forwarded for immediate compliance to:               600               1. --Conservator of Forests, Bilaspur.               2.  All Divisional Forest  Officers,  Bilaspur               Circle.               3.  Copy  to C.F. Raipur  Circle  for  similar               auction in this cess levied in any division of               his Circle."     On 24.4.1959 the Madhya Pradesh High Court’s Judgment in Surajdin v. State of M.P., declaring the collection of 7-1/2 per  cent illegal was reported in 1960 MPLJ--39. Even  after this decision Government continued to charge 7-1/2 per  cent extra  money. Again on 31.8. 1961 the High Court  of  Madhya Pradesh in N.K. Doongaji v. Collector, Surguja, decided that the  charging of 7-1/2 per cent by the Government above  the auction  money  was illegal. This Judgment was  reported  in 1962  MPLI-- 130. It is the appellants’ case that they  came to know about this decision only in or about September 1962. On 17.10. 1964 they served a notice on Government of  Madhya Pradesh under s. 80 of the Code of Civil Procedure  request- ing  the refund of Rs.54,606.00, failing which, a  suit  for recovery  would  be filed; and later they  instituted  Civil Suit No.  of 1964 in the court of Additional District Judge, Jabalpur on 24.12.1964. The Government resisted the suit on, inter alia, ground of limitation. The trial court taking the view  that Articles 62 and 96 of the First Schedule  to  the Limitation  Act,  1908  were applicable and  the  period  of limitation  began  to run from the dates the  payments  were made to the Government, held the suit to be barred by  limi- tation and dismissed it. In appeal, the High Court took  the view  that Article 113 read with s. 17, and not Article  24, of the Schedule to the Limitation Act 1963, was  applicable; and  held that the limitation began to run from 17.10.  1961 on which date the Government decided not to charge extra  7- 1/2 per cent on the auction money, and as such, the suit was barred  on 17.12. 1964 taking into consideration the  period of  two  months  prescribed by s. 80 of the  Code  of  Civil Procedure.  Consequently,  the  appeal  was  dismissed.  The appellants’  petition for leave to appeal to this Court  was also rejected observing, "it was unfortunate that the  peti- tioners filed their suit on 24.12. 1964 and as such the suit was barred by time by seven days."     Mr.  M.V. Goswami, learned counsel for  the  appellants, submits,  inter alia, that the High Court erred  in  holding that  the limitation started running from  17.16.1961  being the date of the letter, Exhibit D-23, which was not communi- cated  to the appellants or any other contractor and  there- fore the appellants had no opportunity to know 601 about  it on that very date with reasonable diligence  under s.  17 and the High Court ought to allow atleast a week  for knowledge  of  it by the appellants in which case  the  suit would be within time. Counsel further submits that the  High Court while rightly discussing that s. 17 of the  Limitation Act, 1963 was applicable, erred in not applying that section to  the facts of the instant case, wherefore,  the  impugned Judgment is liable to be set aside.     Mr. Ujjwal A. Rana, the learned counsel for the respond- ent,  submits, inter alia, that 17.10.2961 having  been  the date on which the Government finally decided not to  recover

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extra  7-1/2  per cent above the auction  .money,  the  High Court  rightly  held that the limitation started  from  that date and the suit was clearly barred under Article 24 or 113 of the Schedule to the Limitation Act, 1963; and that though the  records did not show that the Government  decision  was communicated  to  the appellants, there was  no  reason  why they, with reasonable diligence, could not have known  about it on the same date-     The  only question to be decided, therefore, is  whether the  decision of the High Court is correct. To  decide  that question  it  was necessary to know what was the  suit  for. There  is no dispute that 7-1/2 per cent above  the  auction money  was  charged by the Government of Madhya  Pradesh  as mahua  and fuel cess, and the High Court  subsequently  held that  it had no power to do so. In view of those writ  peti- tions challenging that power, Government asked the  contrac- tors to continue to pay the same pending Government’s  deci- sion  on the question; and the appellants accordingly  paid. Ultimately  on 17.10.1961 Government decided not to  recover the extra amount any more but did not yet decide the fate of the  amounts already realised. There is no denial  that  the liquor contracts were performed by the appellants. There  is no escape from the conclusion that the extra 7-1/2 per  cent was  charged by the Government believing that it had  power, but the High Court in two cases held that the power was  not there.  The money realised was under a mistake  and  without authority of law. The appellants also while paying  suffered from the same mistake. There is therefore no doubt that  the suit was for refund of money paid under mistake of law.     The question is what was the law applicable to the case. ’Nul ne doit senrichir aux depens des autres’--No one  ought to enrich himself at the expense of others. This doctrine at one stage of English common law was remedied by ’indebitatus assumpsit’  which action lay for money "had and received  to the use of the plaintiff". It lay to recover 602 money  paid under a mistake, or extorted from the  plaintiff by  duress of his goods, or paid to the defendant on a  con- sideration  which totally tailed. On abolition of  ’indebit- atus  assumpsit’,  courts  used to imply a  promise  to  pay which,  however,  in course of time was held  to  be  purely fictitious.  Lord Manslied in Moses v. Macferlan,  [1760]  2 Burr.  1005  at 10 12 explained the juridical basis  of  the action for money "had and received" thus:               "This  kind  of equitable action,  to  recover               back  money, which ought not in justice to  be               kept,  is very beneficial, and therefore  much               encouraged. It lies only for money which,  ’ex               aequo et bono’, the defendant ought to refund;               it  does not lie for money paid by the  plain-               tiff,  which is claimed of him as  payable  in               point of honour and honesty, although it could               not have been recovered from him by any course               of law; as-in payment of a debt barred by  the               Statute  of Limitations, or contracted  during               his infancy, or to the extent of principal and               legal  interest upon a usurious contract,  or,               for money fairly lost at play; because in  all               these cases, the defendant may retain it  with               a  safe conscience, though by positive law  he               was  barred from recovering. But it  lies  for               money paid by mistake; or upon a consideration               which  happens  to  fail;  or  for  money  got               through  imposition, (express or implied);  or               extortion;  or oppression; or an undue  advan-

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             tage  taken  of  the  plaintiff’s   situation,               contrary  to laws made for the  protection  of               persons  under  those  circumstances.  In  one               word, the gist of this kind of action is, that               the  defendant, upon the circumstances of  the               case,  is obliged by the ties of natural  jus-               tice and equity to refund the money."     In  that case Moses received from Jacob four  promissory notes of cash each. He endorsed these to Macferlan who, by a written  agreement, contracted that he would not hold  Moses liable on the endorsement. Subsequently, however,  Macferlan sued Moses on the notes in a Court of Conscience. The  Court refused to recognise the agreement, and Moses was forced  to pay.  Moses then brought an action against Macferlan in  the king’s  Bench for money "had and received" to his use.  Lord Manslied allowed him to recover observing as above.      Courts in England have since been trying to formulate a juridicial basis of this obligation. Idealistic formulations as  ’aequum et bonum’ and ’natural justice’ were  considered to be inadequate and the 603 more  legalistic basis of unjust enrichment  is  formulated. The  doctrine  of  ’unjust enrichment’ is  that  in  certain situation  it  would be ’unjust’ to allow the  defendant  to retain a benefit at the plaintiff’s expense. The  relatively modern  principle of Restitution is of the nature  of  quasi contract.  But  the English law has not yet  recognised  any generalised  right  to restitution in every case  of  unjust enrichment.  As Lord Diplock has said, "there is no  general doctrine  of "unjust enrichment" recognised in English  law. What  it does is to provide specific remedies in  particular cases  of  what might be classed as unjust enrichment  in  a legal system i.e. based upon the civil law." In Sinclair  v. Brougham, [1914] AC 398 Lord Haldane said that law could ’de jure’  impute promises to repay whether for money  "had  and received"  otherwise, which may, if made defacto,  it  would inexorably avoid.     The principle of unjust enrichment requires: first, that the  defendant  has  been ’enriched’ by  the  receipt  of  a "benefit"; secondly, that this enrichment is "at the expense of  the plaintiff"; and thirdly, that the retention  of  the enrichment be unjust. This justifies restitution. Enrichment may  take  the  form of direct advantage  to  the  recipient wealth  such as by the receipt of money or indirect one  for instance where inevitable expense has been saved.     Another analysis of the obligation is of quasi contract. It  was said; "if the defendant be under an obligation  from the  ties of natural justice, to refund; the law  implies  a debt,  and  give this action rounded in the  equity  of  the plaintiff’s  case,  as it were, upon a  contract  (quasi  ex contracts) as the Roman law expresses it." As Lord Wright in Fibrosa Spolka v. Fairbairn Lawson, [1943] AC 32--1942 2 All E.R.  122 pointed out, "the obligation is as efficacious  as if it were upon a contract. Such remedies are quasi contract or restitution and theory of unjust enrichment has not  been closed in English law."     Section 72 of the Indian Contract Act deals with liabil- ity  of person to whom money is paid or thing delivered,  by mistake or under coercion. It says:               "A  person  to whom money has  been  paid,  or               anything delivered, by mistake or under  coer-               cion, must repay or return it."               Illustration (b) to the section is:               "A  Railway  Company  refuses  to  deliver  up               certain  goods to the consignee,  except  upon

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             the payment of an illegal               604               charge  for carriage. The consignee  pays  the               sum  charged in order to obtain the goods.  He               is  entitled to recover so much of the  charge               as was illegally excessive."     Our law having been codified, we have to apply the  law. It  is true, as Pollock wrote in 1905 in the preface to  the first  Edition  of Pollock and Mulla’s Indian  Contract  and Specific Relief Acts:               "The Indian Contract Act is in effect  .......               a code of English law. Like all codes based on               an existing authoritative doctrine, it assumes               a  certain  knowledge of  the  principles  and               habits  of thought which are embodied in  that               doctrine."     It  is,  therefore, helpful to know  "those  fundamental notions in the common law which are concisely declared, with or, without modification by the text."     There is no doubt that the instant suit is for refund of money  paid by mistake and refusal to refund may  result  in unjust  enrichment depending on the facts and  circumstances of the case. It may be said that this court has referred  to unjust enrichment in cases under s. 72 of the Contract  Act. See AIR 1980 SC 1037; AIR 1985 SC 883 and AIR 1985 SC 901.     The next question is whether, and if so, which provision of  the  Limitation Act will apply to such a suit.  On  this question  we find two lines of decisions of this Court,  one in respect of civil sulks and the other in respect of  peti- tions under Article 226 of the Constitution of India. Though there  is no constitutionally provided period of  limitation for  petitions under Article 226, the limitation  prescribed for  such suits has been accepted as the  guideline,  though little more latitude is available in the former.     A  tax paid under mistake of law is refundable under  s. 72 of the Indian Contract Act, 1872. In Sales Tax Officer v. Kanhaiya Lal, [1959] SCR 1350 where the respondent, a regis- tered firm, paid sales tax in respect of the forward  trans- actions in pursuance of the assessment orders passed by  the Sales Tax Officer for the year 1949-51; in 1952 the  Allaha- bad High Court held in M/s Budh Prakash Jai Prakash v. Sales Tax  Officer, Kanpur, [1952] ALJ 332 that the levy of  sales tax on forward transactions was ultra vires. The  respondent asked  for a refund of the mounts paid, filing a writ  peti- tion under Article 226 of 605 the Constitution. It was contended for the Sales Tax Author- ities  that  the  respondent was not entitled  to  a  refund because (1) the amounts in dispute were paid by the respond- ent under a mistake of law and were, therefore,  irrecovera- ble,  (2)  the payments were in discharge of  the  liability under the Sales Tax Act and were voluntary payments  without protest,  and  (3)  inasmuch as the monies  which  had  been received  by  the Government had not been retained  but  had been spent away by it and the respondent was disentitled  to recover  the  said amounts. This Court held  that  the  term "mistake"  in  s. 72 of the Indian  Contract  Act  comprised within  its scope a mistake of law as well as a  mistake  of fact  and  that, under that section a party is  entitled  to recover  money paid by mistake or under coercion, and if  it is established that the payment, even though it be of a tax, has been made by the party labouring under a mistake of law, the party receiving the money is bound to repay or return it though it might have been paid voluntarily, subject,  howev- er,  to  questions of estoppel, waiver,  limitation  or  the

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like.  On  the question of limitation, it was held  that  s. 17(1)(c) of the Limitation Act, 1963 would be applicable and that  where a suit will be to recover "monies paid  under  a mistake of law, a writ petition within the period of limita- tion  prescribed, i.e., within 3 years’ of the knowledge  of the mistake, would also lie." It was also accepted that  the period of limitation does not begin to run until the  plain- tiff  has discovered the mistake or could,  with  reasonable diligence, have discovered it.     The  money may not be recoverable if in paying  and  re- ceiving it the parties were in pan delicto. In Kiriri Cotton Co.  Ltd.  v. Ranchhoddas Keshavji Dewani,  [1960]  AC  192, where the appellant company, in consideration of granting to the respondent a sub-lease asked for and received from him a premium of Sh. 10,000 and the latter.claimed refund thereof, the  Privy Council held that the duty of observing  the  law was  firmly placed by the Ordinance on the shoulders of  the landlord for the protection of the tenant, and the appellant company and the respondent were not therefore in pari delic- to in receiving and paying respectively the illegal premium, which, therefore, in accordance with established common  law principles, the respondent was entitled to recover from  the landlord and that the omission of a statutory remedy did not in  cases of this kind exclude the remedy by money  had  and received. In the instant case also the parties could not  be said to be in pari delicto in paying and receiving the extra 7-1/2%  per cent. Had the appellants not paid  this  amount, they would not have been given the contracts.     In  D.  Cawasji &. Co. v. The State of  Mysore  &  Anr., [1975] 2 SCR 511, the appellants paid certain amount to  the Government as 606 excise  duty  and education cess for the years 195  1-52  to 1965-66  in  one  case and from 1951-52 to  1961-62  in  the other.  The  High Court struck down the  provisions  of  the relevant Acts as unconstitutional. In Writ Petitions  before the  High  Court claiming refund, the  appellants  contended that  the payments in question were made by them under  mis- take  of law; that the mistake was discovered when the  High Court struck down the provisions as unconstitutional and the petitions  were, therefore, in time but the High Court  dis- missed  them on the ground of inordinate  delay.  Dismissing the appeals, this Court held that where a suit would lie  to recover monies paid under a mistake of law, a writ  petition for refund of tax within the period of limitation would lie. For filing a writ petition to recover the money paid under a mistake of law the starting point of limitation is from  the date on which the judgment declaring as void the  particular law  under which the tax was paid was rendered. It was  held in  D. Cawasji (supra) that although s. 72 of  the  Contract Act has been held to cover cases of payment of money under a mistake  of law, as the State stands in a peculiar  position in respect of taxes paid to it, there are perhaps  practical reasons  for the law according different treatment  both  in the matter of the heads under which they could be  recovered and  the period of limitation for recovery.  P.N.  Bhagwati, J., as he then was, in Madras Port Trust v. Hymanshu  Inter- national, [1979] 4 SCC 176, deprecated any resort to plea of limitation  by  public  authority to defeat  just  claim  of citizens  observing that though permissible under law,  such technical  plea should only be taken when claim is not  well founded.     Section  17(1)(c) of the Limitation Act, 1963,  provides that  in  the  case of a suit for relief of  the  ground  of mistake,  the  period of limitation does not  begin  to  run

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until the plaintiff had discovered the mistake or could with reasonable  diligence, have discovered it. In a  case  where payment  has been made under a mistake of law as  contrasted with  a mistake of fact, generally the mistake become  known to the party only when a court makes a declaration as to the invalidity of the law. Though a party could, with reasonable diligence,  discover a mistake of fact even before  a  court makes a pronouncement, it is seldom that a person can,  even with reasonable diligence, discover a mistake of law  before a judgment adjudging the validity of the law.     E.S.  Venkataramiah,  J., as his Lordship then  was,  in Shri  Vallabh Glass Works Ltd. v. Union of India,  [1984]  3 SCR 180, where the appellants claimed refund of excess  duty paid under Central Excise and Salt Act, 1944, laid down that the  excess amount paid by the appellants would have  become refundable by virtue of s. 72 of the 607 Indian  Contract  Act  if the appellants had  filed  a  suit within  the period of limitation; and that s.  17(1)(c)  and Article 113 of the Limitation Act, 1963 would be applicable.     In Commissioner of Sales Tax, U.P.v. M/s Auriaya Chamber of Commerce Allahabad, [1986] 3 SCC 50, the Supreme Court in its decision dated May 3, 1954 in Sales Tax Officer v.  Budh Prakash  Jai  Prakash, [1954] 5 STC 193 having held  tax  on forward  contracts  to be illegal and ultra vires  the  U.P. Sales  Tax Act, and that the decision was applicable to  the assessee’s  case, the assessee filed several  revisions  for quashing  the assessment order for the year 1949-50 and  for subsequent  years  which  were all dismissed  on  ground  of limitation. In appeal to this Court Sabyasachi Mukharji,  J. while  dismissing  the appeal held that money paid  under  a mistake of law comes within mistake in s. 72 of the Contract Act;  there is no question of any estoppel when the  mistake of law is common to both the assessee and taxing  authority. His Lordship observed that s. 5 of the Limitation Act,  1908 and  Article  96 of its First Schedule  which  prescribed  a period  of  3 years were applicable to suits for  refund  of illegally collected tax.     In  Salonah  Tea Co. Ltd. & Ors.  v.  Superintendent  of Taxes,  Nowgong and Ors., [1988] 1 SCC 401, the Assam  Taxa- tion  (on  Goods carried by Road or Inland  Waterways)  Act, 1954 was declared ultra vies the Constitution by the Supreme Court  in Atiabari Tea Co. Ltd. v. State of Assam, AIR  1961 SC  232. A subsequent Act was also declared ultra  vires  by High  Court  on August 1, 1963 against which  the  State  of Assam  and  other respondents preferred appeals  to  Supreme Court. Meanwhile the Supreme Court in a writ petition Khyer- bari  Tea  Co.  Ltd. v. State of Assam, [1964]  5  SCR  975, declared  on  December 13, 1963 the Act to be  intra  vires. Consequently  the above appeals were allowed. Notices  were, therefore,  issued requiring the appellant under s. 7(2)  of the  Act  to  submit returns. Returns were  duly  filed  and assessment  orders  passed thereon. On July  10,  1973,  the Gauhati  High Court in its Judgment in Loong Soong  Tea  Es- tate’s  case, Civil Rule No. 1005 of 1969, decided  on  July 10,  1973, declared the assessment to be  without  jurisdic- tion. In November, 1973 the appellant filed writ petition in the  High Court contending that in view of the  decision  in Loong  Soong  Tea Estate’s case he came to  know  about  the mistake in paying tax as per assessment order and also  that he  became entitled to refund of the amount paid.  The  High Court  set aside the order and the notice of demand for  tax under the Act but declined to order refund of the taxes paid by  the  appellant on the ground of delay and laches  as  in view of the High Court it was possible for the appellant  to

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know about 608 the  illegality of the tax sought to be imposed as early  as in 1963, when the Act in question was declared ultra  vires. Allowing  the assessee’s appeal, Mukharji, J.  speaking  for this Court held:               "In this case indisputably it appears that tax               was  collected without the authority  of  law.               Indeed  the  appellant had to pay the  tax  in               view of the notices which were without  juris-               diction.  It appears that the  assessment  was               made under section 9(3) of the Act. Therefore,               it  was without jurisdiction. In the  premises               it  is  manifest that the respondents  had  no               authority to retain the money collected  with-               out the authority of law and as such the money               was liable to refund."     The question there was whether in the application  under Art. 226 of the Constitution, the Court should have  refused refund on ground of laches and delay, the case of the appel- lant having been that it was after the Judgment in the  case of  Loong Soong tea Estate, the cause of action arose.  That judgment  was  passed  in July, 1973. The  High  Court  was, therefore,  held to have been in error in refusing to  order refund on the ground that it was possible for the  appellant to  know about the legality of the tax sought to be  imposed as early as 1973 when the Act in question was declared ultra vires. The Court observed:               "Normally  speaking in a society  governed  by               rule  of law taxes should be paid by  citizens               as  soon  as they are due in  accordance  with               law.  Equally,  as  a corollary  of  the  said               statement  of law it follows that  taxes  col-               lected without the authority of law as in this               case from a citizen should be refunded because               no State has the right to receive or to retain               taxes or monies realised from citizens without               the authority of law."     On  the question of limitation referring to Suganmal  v. State of M.P., AIR 1965 SC 1740, and Tilokchand Motichand v. H.B.  Munshi, [1969] 2 SCR 824, his Lordship  observed  that the  period of limitation prescribed for recovery  of  money paid  by mistake started from the date when the mistake  was known. In that case knowledge was attributable from the date of the Judgment in Loong Soong Tea Estate’s case on July 10, 1973.  There had been statement that the appellant  came  to know of that matter in October, 1973 and there was no denial of  the  averment made. On that ground, the High  Court  was held to be in 609 error. It was accordingly held that the writ petition  filed by  the  appellants  were within the  period  of  limitation prescribed under Art. 113 of the Schedule read with s. 23 of the Limitation Act, 1963.     It  is  thus a settled law that in suit  for  refund  of money  paid by mistake of law, s. 72 of the Contract Act  is applicable  and the period of limitation is three  years  as prescribed  by  Article 113 of the Schedule  to  the  Indian Limitation  Act, 1963 and the provisions of s.  17(1)(c)  of that Act will be applicable so that the period will begin to run from the date of knowledge of the particular law, where- under  the  money was paid, being declared  void;  and  this court be the date of judgment of a competent court declaring that law void.     In  the  instant case, though the  Madhya  Pradesh  High

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Court in Surajdin v. State of M.P., declared the  collection on 7-1/2% per cent illegal and that decision was reported in 1960  MPLJ 39, the Government was still charging  it  saying that  the matter was under consideration of the  Government. The final decision of the Government as stated in the letter dated  17.10. 1961 was purely an internal  communication  of the  Government copy whereof was never communicated  to  the appellants or other liquor contractors. There could,  there- fore,  be no question of the limitation starting  from  that date.  Even  with reasonable diligence, as envisaged  in  s. 17(1)(c)  of the Limitation Act, the appellants  would  have taken  at least week to know about it. Mr. Rana  has  fairly stated  that  there was nothing on record to show  that  the appellants  knew about this letter on 17.10. 1961 itself  or within  a  reasonable time thereafter. We  are  inclined  to allow  at  least a week to the appellants  under  the  above provision. Again Mr. Rana has not been in a position to show that  the statement of the appellants that they  knew  about the  mistake  only  after the judgment  in  Doongaji’s  case reported  in  1962 MPLJ 130, in or  about  September,  1962, whereafter  they  issued the notice under s. 80  C.P.C.  was untrue.  This statement has not been shown to be  false.  In either  of  the above cases, namely, of knowledge  one  week after the letter dated 17.10. 1961 or in or about September, 1962,  the  suit would be within the  period  of  limitation under  Article  113 of the Schedule to the  Limitation  Act, 1963.     In  the  result, we set aside the Judgment of  the  High Court,  allow  the appeal and remand the suit.  The  records will be sent down forthwith to the trial court to decide the suit  on  merit in accordance with law,  expeditiously.  The appellants shall be entitled to the costs of this appeal. R.N  .J.                                              Appeal allowed. 610