Tribal Research Institutes ( TRIs ) set up jointly by Central Government and State Governments , besides being engaged in the work of providing planning inputs to the State Government , conducting research and evaluation studies , collection of data , conduct of training , seminars and workshops etc also undertake documentation of customary laws , setting up of tribal museum , for exhibiting tribal artifacts , and other related activities . So far 17 Tribal Research Institutes ( TRI 's ) have been set up in the States of Andhra Pradesh , Assam , Chhattisgarh , Jharkhand , Gujarat , Karnataka , Kerala , Madhya Pradesh , Maharashtra , Orissa , Rajasthan , Tamil Nadu , West Bengal , Uttar Pradesh , Manipur , Tripura and Andaman & Nicobar Islands .