Sahar is a Sub-District (Tehsil/Block/Mandal) in the Bhojpur District of Bihar. As par Census 2011 information the sub-district code of Sahar is 01434. There are about 14 sub-districts in Bhojpur and Sahar is one of them. Agiaon, Arrah, Barhara, Behea, Charpokhari, Garhani, Jagdishpur, Koilwar, Piro, Sandesh, Shahpur, Tarari, Udwant Nagar etc. are other sub-districts in Bhojpur.There are about 56 villages in Sahar sub-district, which you can browse from villages list.