Tribes have been classified according to their permanent and acquired traits. Classification of Tribal societies: • Permanent traits • Acquired traits
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Classification on the basis of size:
In terms of size, tribals range between seven million to less than 100 person (In Andaman Nicobar Islands). The biggest tribes are the Gonds, Bhils, Santhals, Oraons, Minas, Bodos, and Mundas each at least a million people. The tribals in India shared 8.2% of total population i.e. 85 million people according to 2001 census.