Barhat is a Sub-District (Tehsil/Block/Mandal) in the Jamui District of Bihar. As par Census 2011 information the sub-district code of Barhat is 01528. There are about 10 sub-districts in Jamui and Barhat is one of them. Chakai, Gidhaur, Islamnagar Aliganj, Jamui, Jhajha, Khaira, Lakshmipur, Sikandra, Sono etc. are other sub-districts in Jamui.There are about 43 villages in Barhat sub-district, which you can browse from villages list.