Based on language, Tribal groups are categorized into 4:
a) Indo-Aryan
b) Dravidian
c) Austric
d) Tibeto-Burman
The first two, Indo-Aryan and Dravidian, are also spoken by other people of India. Among the Tribals, 1% speak Indo-Aryan and 3% speak Dravidian languages. Austric and Tibeto-Burman are the most popular languages of the Tribals. Based on physical and racial features, the
Tribals of India are divided into 5:
a) Negrito
b) Australoid
c) Mongoloid
d) Dravidian
e) Aryan.
Of these the last two – Dravidian and Aryan, are shared by other Indians also.