40. (a) The Executive Power· of the Commonwealth is vested in the King and is exercisable by the Viceroy as the King’s representative, acting on the advice of the Cabinet, subject to the provisions of this Act, and extends to the execution and maintenance of this Act and of the Laws of the Commonwealth.
(b) Subject to the provisions of this Act, and to legislation by the Commonwealth Parliament, the Viceroy, acting on the advice of the Cabinet, shall have and perform all executive powers and duties relating to theGovernment or revenues of India, as might or should have been exercised or performed by His Majesty’s Secretary of State, or the Secretary of State in Council, before this Act came into force.