Tribal areas generally mean areas having preponderance of tribal population. However, the Constitution of India refers tribal areas within the States of Assam, Meghalaya, Tripura & Mizoram, as those areas specified in Parts I, II, IIA & III of the table appended to paragraph 20 of the Sixth Schedule. In other words, areas where provisions of Sixth Schedule are applicable are known as Tribal Areas. In relation to these areas Autonomous District Councils, each having not more than thirty members have been set up. These councils serve as an instrument of self-management and have powers of legislation and administration of
justice apart from executive, developmental and financial responsibilities. State-wise details of Tribal Areas are as under:-
1. The North Cachar Hills District
2. The Karbi-Anglong District
1. Khasi Hills District
2. Jaintia Hills District
3. The Garo Hills District
Part II A
Tripura Tribal Areas District
Part III 3* * * * * *
1. The Chakma District
2. The Mara District
3. The Lai District
1.Substituted by the Government of Assam Notification No. TAD/R/115/74/47, dated 14.10.1976 for "The Mikir Hills District"
2.Substituted by the Government of Meghalaya Notification No. DCA 31/72/11, dated the 14th June, 1973, Gazette of Meghalaya, Pt, VA, dated 23.6.1973, p. 200.
3.The words "The Mizo District" omitted by the Government of Union Territories (Amendment) Act, 1971, s. 13 (w.e.f. 29.4.1972).
4.Inserted by the Mizoram District Councils (Miscellaneous Provisions) Order, 1972 published in the Mizoram Gazette, 1972, dated the 5th May, 1972, Vol. I, Pt. II, p. 17 (w.e.f. 29.4.1972).
5.Substituted by the Sixth Schedule to the Constitution (Amendment) Act, 1988 (67 of 1988), S.2 for serial number 2 & 3 and the entries relatiing thereto.
6.Inserted by the Constitution (49th Amendment) Act, 1984 s. 4 (w.e.f. 1.4.1985)