Adivasi
The Adivasi (also transliterated as Adibasi) are heterogeneous tribal groups across the Indian subcontinent. The term is a recent invention from the 20th century and is now widely used as a self-designation by groups classified as Scheduled Tribes by the Indian government. They are officially recognized as "Scheduled Tribes" in India and as "Ethnic Minorities" in Bangladesh. They comprise 8.6% of India's population and 1.1% of Bangladesh's; or 104.2 million in India, according to the 2011 census, and 2 million in Bangladesh according to the 2010 estimate.
Claiming to be among the original inhabitants of the Indian subcontinent, many present-day Adivasi communities formed during the flourishing period of the Indus Valley Civilization or after the decline of the IVC, harboring various degrees of ancestry from ancient Dravidians, Indus Valley Civilization, Indo-Aryan, Austroasiatic and Tibeto-Burman language speakers.
Adivasi studies is a new scholarly field, drawing upon archaeology, anthropology, agrarian history, environmental history, subaltern studies, indigenous studies, aboriginal studies, and developmental economics. It adds debates that are specific to the Indian context.