(1) As soon as may be after the commencement of this Act, the Central Government shall, by notified order, appoint an authority—
         (a) to determine on the basis of the population figures notified under section 15 the number of seats to be reserved for the Scheduled Castes and the Scheduled Tribes of Bihar and of West Bengal in the House of the People and in the legislative Assembly of each of those States having regard to the relevant provisions of the Constitution and of this Act; and
         (b) to revise to     such extent as may be necessary or expedient having regard to the said provisions, the orders of the delimitation Commission made under section 8 of the Delimitation Commission Act, 1952 (81 of 1952), with respect to Bihar and West Bengal.
     (2) The said authority shall perform its functions in such manner and shall follow such procedure, as may be prescribed.