As per Delimitation of Parliamentary and Assembly constituencies Order, 2008, No. 134 Ujiarpur Assembly constituency is composed of the following: Ujiarpur community development block; Sultanpur Ghataho,
Chakbahauddin, Mokhtiyarpur Salkhani, Panr, Pachpaika, Harishankarpur, Kewanta, Nagargama, Pagra, Nawada, Basariya Plgram panchayats and Dalsinghsarai notified area of Dalsinghsarai CD Block.[2]