L1 users: 76,500 (2001 census). Ethnic population: 144,000. Total users in all countries: 77,000.
Assam state: Karimganj district; Mizoram state: Aizawl, Chhimtuipui, and Lunglei districts, Karnafuli river bank area, 30 villages; Tripura state: north and central.
Considered dialect of Kok Borok [trp] called Polong-O (Muanthanga).
Latin script [Latn].
A Scheduled Tribe. Different from Riang Lang [ril] of Myanmar, a Mon-Khmer language. Traditional religion, Christian.