Kokborok language
Sino-Tibetan language spoken in India and Bangladesh
Kok-borok (also spelled Kok Borok) is the native language of the Borok people in the disputed territory of the Tripura Division and its neighboring areas of Bangladesh and the Republic of India. The word Kok-borok is a compound of the words kok, which means "language", and borok, which literally means "nation", but is used to denote the Borok people. Thus Kok-borok means "the language of Borok" or "the language of the Borok people".
There are more than 950.000 people speaking Kokborok. Kokporok is an official language in India, in the Tripura division.