Tajpur is a Sub-District (Tehsil/Block/Mandal) in the Samastipur District of Bihar. As par Census 2011 information the sub-district code of Tajpur is 01290. There are about 20 sub-districts in Samastipur and Tajpur is one of them. Bibhutpur, Bithan, Dalsinghsarai, Hasanpur, Kalyanpur, Khanpur, Mohanpur, Mohiuddinagar, Morwa, Patori, Pusa, Rosera, Samastipur, Sarairanjan, Shivaji Nagar, Singhia, Ujiarpur, Vidyapati Nagar, Warisnagar etc. are other sub-districts in Samastipur.There are about 66 villages in Tajpur sub-district, which you can browse from villages list.