Tripura is a state in Northeast India. The third-smallest state in the country, it covers 10,491 km2 (4,051 sq mi) and is bordered by Bangladesh to the north, south, and west, and the Indian states of Assam and Mizoram to the east. In 2011 the state had 3,671,032 residents, constituting 0.3% of the country's population. The Bengali people form the ethno-linguistic majority in Tripura. Indigenous communities, known in India as scheduled tribes, form more than 30 per cent of Tripura's population. The Kokborok speaking Tripuri people are the major group among 19 tribes and many subtribes.