An Act further to amend the Mines and Minerals (Development and Regulation) Act, 1957. This Act may be called the Mines and Minerals (Development and Regulation) Amendment Act, 2021. It shall come into force on such date as the Central Government may, by notification in the Official Gazette, appoint; and different dates may be appointed for different provisions of this Act and any reference in any such provision to the commencement of this Act shall be construed as a reference to the coming into force of that provision.