"Sylheti is an Indo-Aryan language spoken by about 11 million people in India and Bangladesh (Hammarström et al., 2017). Sylheti is an Eastern Indo-Aryan language, primarily spoken in the Sylhet division of Bangladesh, and in Barak valley, in Assam of the India and in the northern parts of the state of Tripura in India."(Mahanta & Gope 2018:81) Mahanta, Sakuntala; Gope, Amalesh (2018). "Tonal polarity in Sylheti in the context of noun faithfulness". Language Sciences. 69: 80–97. doi:10.1016/j.langsci.2018.06.010.
"Along the linguistic continuum of eastern Indic languages, Sylheti occupies an ambiguous position, where it is considered a distinct language by many and also as a dialect of Bengali or Bangla by some others." (Mahanta & Gope 2018:81) Mahanta, Sakuntala; Gope, Amalesh (2018). "Tonal polarity in Sylheti in the context of noun faithfulness". Language Sciences. 69: 80–97. doi:10.1016/j.langsci.2018.06.010.
"There is reported language shift in the Sylheti-speaking regions of Bangladesh and India, as well as in the diaspora with Bengali replacing Sylheti, as some parents do not speak Sylheti to their children, reducing the number of future Sylheti speakers." (Simard, Dopierala & Thaut 2020:5) Simard, Candide; Dopierala, Sarah M; Thaut, E Marie (2020). "Introducing the Sylheti language and its speakers, and the SOAS Sylheti project"(PDF). Language Documentation and Description. 18: 1–22. สืบค้นเมื่อ 16 October 2020.
"At the geographical extremes, Chittagonian, Sylheti, Mal Paharia, and Rohingya are so unintelligible to speakers of other dialects that they are almost universally considered by linguists to be separate languages on their own." (Khan 2018) Khan, Sameer Ud Dowla (21 February 2018). "Amago Bhasha: In celebration of our ethnic and linguistic diversity". Dhaka Tribune. สืบค้นเมื่อ 19 October 2020.