Sonbarsa is a Sub-District (Tehsil/Block/Mandal) in the Sitamarhi District of Bihar. As par Census 2011 information the sub-district code of Sonbarsa is 01066. There are about 17 sub-districts in Sitamarhi and Sonbarsa is one of them. Bairgania, Bajpatti, Bathnaha, Belsand, Bokhara, Charaut, Dumra, Majorganj, Nanpur, Parihar, Parsauni, Pupri, Riga, Runisaidpur, Suppi, Sursand etc. are other sub-districts in Sitamarhi.There are about 63 villages in Sonbarsa sub-district, which you can browse from villages list.