Chakki is a Sub-District (Tehsil/Block/Mandal) in the Buxar District of Bihar. As par Census 2011 information the sub-district code of Chakki is 01436. There are about 11 sub-districts in Buxar and Chakki is one of them. Barhampur, Buxar, Chaugain, Chausa, Dumraon, Itarhi, Kesath, Nawanagar, Rajpur, Simri etc. are other sub-districts in Buxar.There are about 18 villages in Chakki sub-district, which you can browse from villages list.