Sonari is one of the most important towns in eastern Assam. It is a commercial center for Charaideo District. There is a Sub-Divisional Court and an S.D.O. court at Rajadhap. There are several tea gardens around Sonari and a Gymkhana club golf course. Built sometime around 1945 this golf course was created by the tea planters. The golf course is 1.5 km away from the Sonari Gymkhana, and as a whole about 5 km away from the centre of Sonari Town . There are dramatic changes in elevation on this course which make it interesting. This course is part of the NAPUK tea estate. Assam Chah Mazdoor Sangha, Sonari Branch is Affiliated to INTUC No. IV/2211 of 1959 and Registration no.445