Section 151(1) in The Bihar Panchayat Raj Act, 2006
(1)When on account of the reason that the limits of a Panchayat area are altered, the Government may by order published in the Official Gazette dissolve such Panchayat, from a date specified in the order, and direct that the Gram Panchayat, Panchayat Samiti or Zila Parishad concerned-(i)be reconstituted for the Panchayat area of which the Gram Panchayat or Block of which Panchayat Samiti or the District of which Zila Parishad has been dissolved ; or(ii)be established for a Panchayat area, Block or District which has been newly constituted.