For the purpose of determination of the number of seats to be allotted to the new State in the House of the People in accordance with the provisions of sub-section (1), and distribution of those seats as well as the seats allotted to the Legislative Assembly of the new State to territorial constituencies and delimitation thereof in accordance with the provisions of sub-section (2) of section 8 of the Delimitation Commission Act, 1952 (81 of 1952), it shall be lawful for the Delimitation Commission, notwithstanding anything contained in that Act, to Amend, vary or rescind any of its final orders published under section 9 of that Act in so far as any such order relates to any or both of the existing States.