Na Duar is a Sub-District (Tehsil/Block/Mandal) in the Sonitpur District of Assam. As par Census 2011 information the sub-district code of Na Duar is 02044. There are about 7 sub-districts in Sonitpur and Na Duar is one of them. Biswanath, Chariduar, Dhekiajuli, Gohpur, Helem, Tezpur etc. are other sub-districts in Sonitpur.There are about 199 villages in Na Duar sub-district, which you can browse from villages list.