6. (1) The Government may, by notification in the official Gazette, make rules for carrying out the purposes of this Ordinance and any such rules may be retrospective from any date not earlier then the first day of August, 1959. (2) In particular and without prejudice to the generality of the foregoing power, such rules may provide-(a) for the determination of the prescribed price;(b) for any other matter for which there is no provision or no sufficient provision in this Ordinance and for which provision is, in the opinion of the Government, necessary in order to give effect to the purposes of this Ordinance.