The Bodos (pronounced [boːɽoː]) are an ethnic and linguistic aboriginal group of the Brahmaputra valley in the northeast part of India. Bodos are the single largest group in the Northeast region of India. They are recognized as a plains tribe in the Sixth Schedule of the Indian Constitution. Udalguri, Chirang, Baksa, Sonitpur, Goalpara, Dhemaji, Lakhimpur, Darrang, Bongaigaon, Kokrajhar of Assam are considered the centre of the Bodo area. The Bodos living in West Bengal, Nepal are called Mech. The Bodos use the term Bodosa (which is pronounced as Borosa meaning son of Bodo) to describe themselves.