Section 132(2) in The Bihar (Coal Mining) Area Development Authority Act, 1986
(2)The Gram Panchayat Samities and Zila Parishads constituted under the Bihar Panchayat Samities and Zila Parishads Act, 1961 (Bihar Act VI of 1962) as modified up to 20th June, 1970 whose jurisdiction extends over the Coal Mining Development Area shall not exercise such powers and functions as have been entrusted to the Authority constituted under this Act with effect from the date to be notified by the State Government.