Dalsinghsarai is a Sub-District (Tehsil/Block/Mandal) in the Samastipur District of Bihar. As par Census 2011 information the sub-district code of Dalsinghsarai is 01297. There are about 20 sub-districts in Samastipur and Dalsinghsarai is one of them. Bibhutpur, Bithan, Hasanpur, Kalyanpur, Khanpur, Mohanpur, Mohiuddinagar, Morwa, Patori, Pusa, Rosera, Samastipur, Sarairanjan, Shivaji Nagar, Singhia, Tajpur, Ujiarpur, Vidyapati Nagar, Warisnagar etc. are other sub-districts in Samastipur.There are about 45 villages in Dalsinghsarai sub-district, which you can browse from villages list.