Summarize the following court judgment. Appeal No. 302 of 1955. Appeal by special leave from the judgment and order dated April 3	 1954	 of the Mysore High Court in Regular Appeal No. 195 of 1951 52. S.A. Gopala Rao and B. R. L. Iyengar	 for the appellants. Mirle N. Lakshminaranappa	 P. Ram Reddy	 R. Thiagarajan and C. V. L. Narayan	 for the respondent. September 8. The Judgment of the Court was delivered by KAPUR J. This appeal has little substance and must	 therefore	 be dismissed. The appellants are the decree holders and the respondent is the judgment debtor. On February 3	 1941	 by a registered deed the father of the appellants leased to the respondent the house in dispute for a period of 10 years with an option of renewal for further periods for as long as the respondent wanted. This house was used by the respondent for his hotel. The father died on January 25	 1945. On December 21	 1945	 the appellants filed a suit for a declaration that the deed of lease of February 3	 1941	 executed by their father was not for legal necessity or for the benefit of the family	 that the alienation was not binding on them and the option of renewal under the lease was void and unenforceable on account of uncertainty. The appellants further prayed for delivery of possession and for a decree for a sum of Rs. 2	655 as past mesne profits and future mesne profits at Rs. 250 per mensem as from December 1	 1945. The respondent filed his written statement on March 11	 1946	 and an additional written statement on November 26	 1946	 whereby he raised an objection to the jurisdiction of the court by reason of the Mysore House Rent Control Order of 1945. The trial judge upheld the preliminary objection and dismissed the suit. On appeal	 the High Court set aside the decree on the ground that the 594 nature and scope of the suit had been misconceived by the trial court and that it was not based on relationship of landlord and tenant and therefore section 8(1) of the Mysore House Rent Control Order was inapplicable and the case was remanded for retrial. On August 23	 1948	 the suit was decreed. The trial court held that the lease was binding for the first period of ten years as from May 1	 1941	 as it was supported by legal necessity; but the option of renewal was void and unenforceable for uncertainty and therefore a decree for possession was passed to be operative on the expiry of ten years	 i.e.	 May 1	 1951. On appeal the High Court confirmed that decree on August 22	 1950. On July 9	 '1951	 the appellants took out execution of the decree and on July 22	 195 1	 possession was delivered to them. The order for delivery was made without notice to and in the absence of the respondent. The proceedings	 "spot mahazar" that the respondent came to the spot after delivery of the major portion of the property in dispute had been delivered to the appellants. On August 13	 1951	 the respondent made an application in the Executing Court	 the District Judge	 under sections 47	 144 and 151 of the Code of Civil Procedure for setting aside the ex parte order of delivery and for redelivery of possession of the house to him and in the alternative for an order to the appellants to give facilities to him (respondent) to remove the various moveables and articles mentioned in the petition. The appellants pleaded that the application was not maintainable. The District Judge	 on November 14	 1951	 upheld this contention and dismissed the application. An appeal was taken to the High Court and it reversed the order of the Executing Court and directed the appellants to return possession of the house in dispute to the respondent along with the moveables which were in the house at the time respondent was evicted. The High Court held that the Executing Court had no jurisdiction to order the eviction of the respondent because of the provisions of Mysore House Rent and Accommodation Control 595 Order	 1948	 which was in operation on the date of eviction	 The High Court having refused to give a certificate under article 133 the appellants obtained special leave to appeal from this Court on January 12	 1955	 and this is how the matter has come to this Court. The question for decision mainly turns upon the applicability of the provisions of the two House Rent Control Orders of 1945 and 1948 and how far they were applicable to the proceedings in the suit and execution. The Mysore House Rent Control Order of 1945 came into force on November 6	 1945	 and by section 8(1) of this Act a restriction was imposed on the eviction of tenants and the relevant part of this section was: Section 8 "(1) A tenant in possession of a house shall not be evicted therefrom	 whether in execution of a decree or otherwise before or after the termination of the tenancy	 except in accordance with the provisions of this clause; (2)A landlord wishing to evict a tenant in possession shall apply to the Controller for a direction in that behalf. If the Controller after giving the tenant a reasonable opportunity of showing cause against the application	 is satisfied This Order was replaced by the Mysore Rent and Accommodation Control Order of 1948 which came into force on July 1	 1948. The relevant provisions of this Order	 i. e.	 sections 9 and 16 which are applicable to the present appeal are as follows: Section 9 " (1) A tenant in possession of a house shall not be evicted therefrom whether in execution of a decree or otherwise except in accordance with the provisions of this clause (2)A landlord who seeks to evict a tenant in possession shall apply to the Controller for a direction in that behalf If the Controller	 after giving tenant a suitable opportunity of showing cause against such application 	 is satisfied: this Order shall Prevent 596 a landlord from filing a suit for eviction of a tenant before a competent civil court	 provided that no decree for eviction of a tenant	 passed by a civil court shall be executed unless a certificate to that effect is obtained from the Controller " It was argued on behalf of the appellants before the High Court and that argument was repeated before us that the Mysore House Rent Control Order of 1948 was repugnant to the provisions of the (Act IV of 1882) which was brought into force in the State of Mysore by Part B States (Laws) Act	 1951 (Act III of 1951). This Act was enacted on February 22	 1951	 and came into force on April 1	 1951	 which was termed the appointed day. It was contended therefore that the House Control Order could not operate on the rights of the parties on the day when the Executing Court made the. order for delivery of possession to the appellants	 i.e.	 July 9	 1951	 or when the delivery was actually given	 i.e.	 on July 22	 1951. To test the force of this argument it is necessary to examine the provisions of Part B States (Laws) Act and how and when as a consequence of it the became effective and operative in the State of Mysore. Section 3 of that Act deals with the extension and amendment of certain Acts and Ordinances. The Acts and the Ordinances specified in the Schedule were amended and became applicable as specified and as a consequence the fourth paragraph of section 1 for the words " Bombay ' Punjab or Delhi "	 the words " that the said States " were substituted. Therefore the effect of the Part B States (Laws) Act merely was that qua the 	 the State of Mysore was placed on the same footing as the States of Bombay	 Punjab or Delhi. It was by virtue of a Notification No. 2676 Cts. 46 51 5 dated September 12	 1951	 that the was extended to the State of Mysore as from October 1	 1951. Consequently the laws of the State applying to leases which would include the Mysore House Rent Control Order of 1948 continued to be in force and applicable to cases that were pending till it was repealed by the 597 Mysore Rent Control Act of 1951 which received the President 's assent on August 16	 1951. The argument	 therefore	 that as from April 1	 1951	 as a result of repugnancy the House Rent Control Order of 1948 stood repealed must be repelled as unsound and cannot be sustained	 because it was an existing law which was saved by article 372 of the Constitution and remained unaffected by article 254. The Punjab High Court in M/s. Tilakram Rambaksh vs Bank of Patiala (1) discussing the effect of Part B States (Laws) Act on the application of the to PEPSU said: " All that Central Act III of 1951 has done is to make it possible for Part B States to extend the Act to any part of territory by notification. Actually	 however	 this wag never done by PEPSU or Punjab and the is not as such in force there. It is unnecessary in the circumstances to examine the argument further ". Although the question of repugnancy was raised in the High Court at the time of the hearing of the appeal	 the true effect of section 3 of the Part B States (Laws) Act was not brought to the notice of the learned Judges nor was the Notification placed before them	 but it was discussed by the High Court in its order refusing certificate under article 133(1) of the Constitution. The argument of repugnancy	 therefore	 is wholly inefficacious in this appeal. The inapplicability of section 47 to the proceedings out of which the appeal has arisen was also raised before us	 but that contention is equally unsubstantial because the question whether the decree was completely satisfied and therefore the court became functus officio is a matter relating to execution	 satisfaction and discharge of the decree. It was held by this Court in Ramanna vs Nallaparaju (2) that: " When a sale in execution of a decree is impugned on the ground that it is not warranted by the terms thereof	 that question could be agitated	 when it arises between parties to the decree	 only by an application under section 47	 and not in a separate suit ". (1) A.I.R. 1959 Pb. 440	 447. (2) A.I.R. 1956 $.C. 87	 91. 598 See also J. Marret vs Mohammad Shirazi & Sons (1) where the facts were that an order was made by the Executing Court directing contrary to the terms of the decree the payment of a certain fund to the decree holder. The Madras High Court in K. Mohammad Sikri Sahib vs Madhava Kurup (2) held that where the Executing Court was not aware of the amendment of the Rent Restriction Act by which the execution of a decree was prohibited and passed an ejectment order against a tenant	 the Executing Court could not execute the decree and any possession given under an ex parte order passed in execution of such a decree	 could be set aside under section 151 of the Code of Civil Procedure. The prohibition is equally puissant in the present case and section 47 read with section 151 would be equally effective to sustain the order of redelivery made in favour of the respondent. The applicability of res judicata and the defenses of waiver and estoppel were also raised by the appellants. The contention of res judicata was based on the plea taken by the respondent in his written statement	 dated March 11	 1946	 where he pleaded that the civil court had no jurisdiction to order eviction because of the House Rent Control Order	 1945	 to which the reply of the appellants was that considering the nature of the suit and the consequential remedy that they were seeking	 the plea of jurisdiction of the court was not open to the respondent. Thereupon the trial court raised a new 'issue " whether this court has jurisdiction to try the suit	 in view of the House Rent Control Order " which was decided against the respondent and a decree in favour of the appellants was passed on August 23	1945. This judgment formed the basis of the argument before us that the plea of in executability of the decree could not be raised because it was barred on the principle of res judicata. The plea of res judicata is not available to the appellants as the prohibition on account of the House Rent Control Order was not against the passing of the decree but against its execution and therefore the objection to the executability could only be taken (1) A.I.R. 1930 P.C. 86	 (2) A.I.R. 1949 Mad. 599 at the time of the execution of the decree which in the instant case could not be done because the order for delivery by the Executing Court was passed without notice to the respondent. We must	 therefore	 repel the contention based on the ground of res judicata. The argument of waiver and estoppel is also devoid of force. This plea was based on a letter which the respondent 's lawyer sent in reply to the respondent asking to make arrangements to put the appellants in possession. The former replied thereto that his client ' was making arrangements and as soon as he could do go	 he would hand over possession to the appellants. This is slender basis for the sustainability of the plea of waiver and estoppel. There is no conduct on the part of the respondent which has induced the appellants to change their position or has in any way affected their rights and the plea of non executability which has been taken is based on statute and against statute there cannot be an estoppel. This ground taken by the appellants is equally unsound and must be rejected. The contention raised that ignoring sections 9(1) and 16 of the 1948 House Rent Control Order is no more than an error in the exercise of jurisdiction does not appear to be sound because those sections are a fetter on the executability of the decree and not merely an error in the exercise of the jurisdiction. In the present case the two sections mentioned above were a restriction on the power of the court to execute the decree and therefore this argument must also be	 rejected. In the result this appeal fails and is dismissed with costs. Appeal dismissed.

The appellants in execution of a decree passed in their favour for possession over a house obtained possession thereof on July 22	 1951. The order for delivery of possession was made without notice to and in the absence of the respondent. The respondent made an application in the Executing Court under sections 47	 144 and 151	 Code of Civil Procedure for setting aside the ex parte order of delivery and for redelivery of possession of the house to him or in the alternative	 for an order to the appellants for giving facilities for removing the moveables from the house. The Executing Court upheld the contention of the appellant that 76 592 the respondent 's application was not maintainable. On appeal by the respondent the High Court held that the Executing Court had no jurisdiction to order the eviction of the respondent because of the provisions of the Mysore House Rent and Accommodation Control Order	 1948	 which was in operation on the date of eviction and under sections 9 and 16 of which certain restrictions were placed on the eviction of tenants. On appeal to this Court by special leave	 the appellants contended	 inter alia	 as they did in the High Court also 	 that the Mysore House Rent Control Order of 1948 was repugnant to the provisions of the (IV of 1882)	 which became applicable in the State of Mysore by Part B States (Laws) Act	 1951 (Act III of 1951)	 which came into force on April 1	 1951 ; and therefore the House Control Order could not operate on the rights of the parties on the day when the Executing Court made the order for delivery of possession to the appellants	 i. e.	 July 9	 1951	 or when delivery was actually given i.e.	 on July 22	 1951. Held	 that the came into force only when it was extended by notification dated September 12	 1951	 under section 3 of that Act	 i.e.	 from October 1	 1951	 and therefore the Mysore House Rent and Accommodation Control Order	 1948	 was not repealed as from April 1	 1951	 when the Part B States (Laws) Act	 1951	 came into force and was in force when the possession was delivered. It was then an existing law which was saved by article 372 of the Constitution and remained unaffected by article 254	 and the question of repugnancy to the (Act IV of 1882) did not arise in this case. M/s. Tilakram Rambaksh vs Bank of Patiala	 A.I.R. 1959 Punj. 440	 considered. Section 47 of the Code of Civil Procedure was applicable to the proceeding out of which this appeal has arisen because the question whether the decree was completely satisfied and therefore the court became functus officio was a matter relating to execution	 satisfaction and discharge of the decree. Ramanna vs Nallaparaju	 A	 I. R. and J. Marret vs Mohammad Shirazi and Sons	 A.I.R. 1930 P. C. 86	 considered. Where the court was not aware of the statutory restriction by which the execution of a decree was prohibited and passed an ejectment decree against a tenant the Executing Court could not execute the decree and any possession given under an ex parte order passed in execution of such a decree could be set aside under section 151 of the Code of Civil Procedure. K.Muhammad Sikri Sahib vs Madhava Kurup	 A.I.R. 1949 Mad. 809	 considered. 1 The contentions of the appellant based on the ground of res judicata and estoppel were without any force. Sections 9(1) and 16 of the House Rent Control Order placed restrictions on 593 the power of the Court to execute the decree and ignoring them was not merely an error in the exercise of jurisdiction.