Samastipur is a Sub-District (Tehsil/Block/Mandal) in the Samastipur District of Bihar. As par Census 2011 information the sub-district code of Samastipur is 01288. There are about 20 sub-districts in Samastipur and Samastipur is one of them. Bibhutpur, Bithan, Dalsinghsarai, Hasanpur, Kalyanpur, Khanpur, Mohanpur, Mohiuddinagar, Morwa, Patori, Pusa, Rosera, Sarairanjan, Shivaji Nagar, Singhia, Tajpur, Ujiarpur, Vidyapati Nagar, Warisnagar etc. are other sub-districts in Samastipur.There are about 96 villages in Samastipur sub-district, which you can browse from villages list.