Bangladesh hosts a number of endangered languages that are defined as languages at risk of falling out of use, generally because it has few surviving speakers. If it loses all of its native speakers, it becomes an extinct language. UNESCO defines four levels of language endangerment between "safe" (not endangered) and "extinct": Vulnerable Definitely endangered Severely endangered Critically endangered

Status According to Bangladesh Bureau of Statistics data from 2011, the country has 27 "small anthropological groups" consisting of 1,784,000 people in total. Ethnologists in Bangladesh and indigenous leaders claim that 48 indigenous communities, a total of 5 million people, are present in Bangladesh. They host 4 language families with 30 ethno-languages. 12-18 of them are endangered at varying degrees. International Mother Language Institute (IMLI) in Dhaka, a government institute, launched a project to reservation and mobilization of 37 languages (including Bengali, the dominant language of Bangladesh). Only 4 of the target languages have their own scripts — Chakma, Marma, Mru, and Meithei.Special Correspondent, "Disappearing indigenous languages ", BD Chronicles, 21 February 2015 Some other indigenous communities, especially the 2 lakh people living in Rajshahi, use a language called "Sadri" adopting alphabets from Hindi, Bangla, Urdu and other languages. It is used in the Sylhet tea garden area by Telugu, Santhali, Nepali and Rai communities as a lingua franca.

The Hill Tracts, a forested upland area in southeastern Bangladesh, is home to more than a dozen indigenous peoples. 50% of the indigenous people of there have no formal schooling; less than 8% complete primary education, and only 2% completes secondary. Most of the children don't understand the instructions written in Bengali. In north-eastern Bangladesh, Hari, Banai, Dalui, and Rajbongshi indigenous communities have started to use Bengali leaving their native languages due to the lack of social and economical recognition.

List

LanguageCountriesSpeakersStatusCommentsRefBishnupriya Manipuri Creole India, Bangladesh115,000Vulnerable  BawmBangladesh14,000Definitely endangered  ChakBangladesh5,500Definitely endangered  Asho ChinMyanmar, Bangladesh2,340Definitely endangered  Chin, FalamMyanmar, Bangladesh120,000Vulnerable   Chin, HakaMyanmar, Bangladesh446,264Vulnerable   Hajong Bangladesh, India68,000Vulnerable   Khasi India, Bangladesh865,000Vulnerable   Koda Bangladesh, India1,600Severely endangered   Kok Borok Bangladesh, India695,000Vulnerable   Kurux Bangladesh14,000Definitely endangered  Marma Bangladesh166,500Vulnerable   Megam Bangladesh6,870Severely endangered  Mru Bangladesh51,230Definitely endangered  Pangkhua Bangladesh2,730Severely endangered  Pnar India, Bangladesh88,000Definitely endangered  Sadri, Oraon Bangladesh166,000Vulnerable  Sauria Paharia India, Bangladesh117,000Definitely endangered  

In addition to this list International Mother Language Institute (IMLI) in Dhaka counts a number of other languages as endangered including Lushai (959 speakers), Khumi (3369 speakers), Khiyang (3899 speakers), Rengmitca (40 speakers), and Patra (203 speakers).

References