Mr. M. K. Nambiar, appearing for some of the appellants, raised before us the following points: (i) The Motor Vehicles (Amendment) Act (100 of 1956) passed by, the Parliament is wholly repugnant to the provisions of the U. P Act and therefore the latter became void under the provisions of Article 254(1) of the Constitution ; with the result that, at the present time, there is no valid law whereunder the Government can prohibit the appellants from exercising their fundamental right under the Constitution, namely, to carry on their business of motor transport; (ii) the scheme framed under the Act, being one made to operate in future and from day to day, is an instrument within the meaning of section 68B of the Amending Act, and therefore the provisions of the Amending Act would prevail over those of the scheme, and after the Amending Act came into force, it would have no operative force; and (iii) even if the U. P. Act was valid and continued to be in force in regard to the scheme framed thereunder, it would offend the provisions of article 31 of the Constitution, as it was before the Constitution (Fourth Amendment) Act, 1955, as, though the State had acquired the appellant 's interest in a commercial undertaking, no compensation for the said interest was given, as it should be under the said Article.