Make a critical appraisal of Surajit Sinha's line of argument that tribes and castes may not be isolated social categories, but are a part of the great Indian civilization. (Answer in 350 words)

- Make a critical appraisal of Surajit Sinha's line of argument that tribes and castes may not be isolated social categories, but are a part of the great Indian civilization. (Answer in 350 words)
Introduction
Surajit Sinha argued that tribes in India were never isolates but a dimension of the Indian civilisation, historically interacting with caste society and transformed by it. The argument is strong as history for central India and weak as a general theory.

Body
1. The argument: against the colonial image of the isolated tribe, and against both Ghurye's backward Hindus and Elwin's protected aboriginal, Sinha held that tribe and caste are end points of a continuum rather than distinct types. His central process is Rajputisation — tribal chiefs claiming Kshatriya descent, employing Brahman priests and fabricating Rajput genealogies — which he distinguished from Sanskritisation because it was elite-led and generated states rather than merely raising ritual rank.
2. The evidence: his fieldwork among the Bhumij of south Manbhum on the Bengal-Jharkhand border, where the chiefs of Barabhum became Rajas, the Mundari language was lost, and the tribe became a caste within living memory. He extended it to the Gond rajas of Garha-Mandla and Chanda, the Chero and the Bhil chiefdoms, and to the absorption of tribal deities and priests into Hindu temple ritual, of which the Sabara origin of Jagannath and the continuing role of the daitas at Puri is the standard case.
3. The counter-arguments: incorporation was frequently dispossession rather than assimilation, as the Munda and Santal risings show; the model does not fit the North-East at all, where tribes have neither Hindu neighbours nor caste ranking; Beteille argued that tribe and caste differ in kind, tribes being organised on kinship and lacking an encompassing ritual hierarchy; and Adivasi scholars resist the continuum because it is used politically to deny that tribes are distinct and therefore entitled.
4. The verdict: correct as regional history, over-extended as theory.

Conclusion
The evidence for tribal polities becoming Hindu kingdoms in central and eastern India is strong. It is better stated as unequal incorporation than as a continuum, because what actually moved was land and power, and status followed.