L1 users: 6,260 (2011 census), decreasing. 150 monolinguals. Ethnic population: 10,000.
Kosi zone: east Bhojpur district, Bastim, Sano Dungma, and Thulo Dungma VDCs; east border is Arun river.
6b (Threatened). Language of recognized indigenous nationality: Rai.
SOV; postpositions; noun head final; content q-word in situ; 1 prefix; clause constituents indicated by case-marking; verbal affixation marks person and gender; split ergativity; tense; no passives or voice; tonal; 18 consonant and 6 vowel phonemes.
Home, religion. Mixed use: Friends, work. Young adults and older. Some use among children and adolescents. Also use Bantawa [bap].
Devanagari script [Deva].
Local names which may not be dialects: Chhinamkhang, Chhichhangchha, Hangbang, Khandung, Pungwai, Roktulung, Tuncha, Waitpang. Traditional religion.