10,100 (2001 census). 5,310 on Katchal, 3,410 on Kamorta, 930 on Nancowry, 430 on Trinket.
Nicobar Islands, Katchal, Camorta, Nancowry, and Trinket islands.
Camorta (Kamorta), Katchal (Kachel, Tehnu), Nancowry (Nancoury), Trinkut (Trinkat). Central Nicobar once regarded as one language but no longer generally accepted. Dialects now regarded as mutually unintelligible with the exception of Trinket and Katchal. (Parkin 1991).