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