The Adivasi are the heterogeneous tribal groups across the Indian subcontinent. The term Adivasi, a 20th-century construct meaning "ancient inhabitants", is now widely used as a self-designation by many of the communities who are officially recognized as "Scheduled Tribes" in India and as "Ethnic minorities" in Bangladesh. They constitute approximately 8.6% of India's population and about 1.1% of Bangladesh's population.