6. Lamongse Language
400 speakers
Lamongse language is actually a dialect of Southern Nicobarese language, which is the part of Austroasiatic language family. This dialect is particularly mostly spoken within the Kondul Island, which is a rather small island of the Nicobar Islands in India. Not very much is known about the people who speak the language, since the number is reduced to only 400 speakers, presumably old and unable to transmit it to other at this point.