Silonijan is a Sub-District (Tehsil/Block/Mandal) in the Karbi Anglong District of Assam. As par Census 2011 information the sub-district code of Silonijan is 02091. There are about 4 sub-districts in Karbi Anglong and Silonijan is one of them. Diphu, Donka, Phuloni etc. are other sub-districts in Karbi Anglong.There are about 372 villages in Silonijan sub-district, which you can browse from villages list.