314 The President of the Federation may by order extend to Sub-Federations and Federated States such laws in force in British India before the commencement of this Constitution as deal with matters and subjects placed under the exclusive legislative jurisdiction of the Federation under this Constitution. Such laws may be extended with such adaptations and modifications as may be necessary to bring these laws in conformity with the provisions of this Constitution and shall be operative until altered or repealed or amended by the Federal Legislature or other competent authority.