Beldaur is a Sub-District (Tehsil/Block/Mandal) in the Khagaria District of Bihar. As par Census 2011 information the sub-district code of Beldaur is 01326. There are about 7 sub-districts in Khagaria and Beldaur is one of them. Alauli, Chautham, Gogri, Khagaria, Mansi, Parbatta etc. are other sub-districts in Khagaria.There are about 28 villages in Beldaur sub-district, which you can browse from villages list.