The TW (TRP&PTG) Department was established during 1985-86. The State Government, initially, taken up rehabilitation of PTGs through the Forest Department by establishing 3(three) Tribal Rehabilitation Divisions namely Manu, Ambassa, Jatanbari since 1983- 84.
The Reangs, out of the 19(Nineteen) Scheduled Tribes of Tripura, were recognized by Government of India as the Primitive Tribe, now known as the Particularly Vulnerable Tribal Group. The population of the Reangs are 1, 71,251 (as per Survey conducted by the TRP&PTG Department during 2013). As the Reangs were inhabitants of Forest areas / lands the rehabilitation was taken up through plantation of Teak along with some other activities like health care, financial assistance for housing, rearing of domestic animal etc. development of infrastructure in and around their habitations.