I. Religious Approach- Arya samaj, Ramakrishna mission, Catholic mission
II. Voluntary agency approach- Indian Red Cross, Adimjati Sevak Sangh
III. Political Approach- tribes as law and order problem in British India
IV. Anthropological Approach-
- 1. Theory of isolation- Verrier Elwin (National Park theory)
- 2. Theory of Assimilation- A V Thakkar, L P Vidyarthi
- 3. Theory of integration- Panchsheel Policy of Nehru