Kalaigaon is a Sub-District (Tehsil/Block/Mandal) in the Udalguri District of Assam. As par Census 2011 information the sub-district code of Kalaigaon is 02150. There are about 9 sub-districts in Udalguri and Kalaigaon is one of them. Dalgaon, Dhekiajuli, Harisinga, Khoirabari, Mangaldoi, Mazbat, Pathorighat, Udalguri etc. are other sub-districts in Udalguri.There are about 78 villages in Kalaigaon sub-district, which you can browse from villages list.