Sadiya is a Sub-District (Tehsil/Block/Mandal) in the Tinsukia District of Assam. As par Census 2011 information the sub-district code of Sadiya is 02059. There are about 4 sub-districts in Tinsukia and Sadiya is one of them. Doom Dooma, Margherita, Tinsukia etc. are other sub-districts in Tinsukia.There are about 173 villages in Sadiya sub-district, which you can browse from villages list.