As per Delimitation of Parliamentary and Assembly constituencies Order, 2008, No. 38 Jhajharpur Assembly constituency is composed of the following: Jhanjharpur and Lakhnaur community development blocks; Pachahi, Parsad, Banki, Bhit Bhagwanpur, Mahasingh Hasauli, Manmohan and Parwalpur gram panchayats of Madhepur CD block.[1]