The arguments of Mr. Chatterjee, learned Counsel for the petitioner, may be broadly formulated under the following four heads: (i) The Bihar Mica Act, 1947, as amended by the Bihar Mica (Amendment) Act, 1949, is ultra vires for want of constitutional competence; (ii) the provisions of the Act are repugnant to the provisions of the Central Act 53 of 1948, and, therefore, to the extent of such repugnancy the former Act should yield to the latter Act, with the result that the licensing provisions under the Act ceased to have any legal effect; (iii) the petitioner has the fundamental rights under article 19(1)(f) and (g) of the Constitution to acquire, hold and dispose of his property and to carry on any occupation, trade or business in respect thereof, and that the provisions of section 25(1)(c) of the Act operate as an unreasonable restriction on the said rights, and are therefore void; and (iv) even if the said section did not infringe his fundamental rights, the order of the Government in cancelling the lease without affording him reasonable opportunity to show cause within the meaning of the second proviso to that section infringed his fundamental right.