Chhatapur is a Sub-District (Tehsil/Block/Mandal) in the Supaul District of Bihar. As par Census 2011 information the sub-district code of Chhatapur is 01103. There are about 11 sub-districts in Supaul and Chhatapur is one of them. Basantpur, Kishanpur, Marauna, Nirmali, Pipra, Pratapganj, Raghopur, Saraigarh Bhaptiyahi, Supaul, Tribeniganj etc. are other sub-districts in Supaul.There are about 64 villages in Chhatapur sub-district, which you can browse from villages list.