r958 the notification does not, as a fact, purport to modify M•t . 1 ·.n Lal the a mistaken Bengal Act, notion but that merely extends it is all valid. the But whole that of it does on The State of Ddhi not affect the position. The notification intends that all the provisions of the Bengal Finance (Sales Tax) Vsnkatarama Act, 1941, should operate in the State of Delhi, and if Aiyar J. that could be effectuated by recourse being had to any of the pmvers of the Legislature, that should be dofJ.e and the legislation upheld as referable to that power. U t res magis valeat quarn per eat It is lastly urged thats. 2 of the Part C States (Laws) Act is bad for the reason that it confers on the Government a power to modify laws passed by State Legislatures, and that it is an unconstitutional delegation of legislative powers to authorise an outside authority to modify a law enacted by a Legislature on wht are essentially matters of policy. Now, it should be noted that in In re The Delhi Laws Act, 1912 etc. (1 ) one of the questions referred. for the opinion of this Court related to the vires of this very provision, and the answer of the majority of this Court was that the first portion of the section, which is what is material for the present discussion, was valid. Counsel for the petiti6ners, however, relies on the decision of this Court in Rajnarain Singh v. The Chairman, Patna Administration Committee, Patna and another ('), wherein it was held than an executive authority could be authorised by a statute to modify either existing or future laws but not in any essential feature, and that a modification which involved a change of policy of the Act would be bad. It is argued that it is a question of policy whether taxes should be imposed on the supply of materials in building contracts; and that, therefore, the power conferred bys. 2 on the Government to extend a law with modificii.tions cannot be exercised so as to modify a/.ifroyision of the Beng:,t , Finance (Sales Tax) Act, 1941, rel.ating to that mate.r.,. ,The answer to this contentior{ "is . that the' niodifi,cation made by the Central GovetHment, assuming that tlia.t. is its true character, does not.involve any chmige Of poricy iinderlying the Bengal Fi'nAnce '(Sales Tax) Act, 1941,." Incieed, t}i.e .modification gi-i?es;',ff·~ct to the. policy of ~~a:t . (1) [;951) S.C,R. j47. (2) [1955) I S.C.R. 290" .