[4][5] It is spoken by approximately 80,000 ethnic Hajongs across the northeast of the Indian subcontinent, specifically in the states of Assam, Meghalaya, Arunachal Pradesh, and West Bengal in present-day India, and the divisions of Mymensingh and Sylhet in present-day Bangladesh.

The Hajongs originally spoke a Tibeto-Burman language, but it later mixed with Assamese and Bengali.

In each script, there is one added unique symbol for the close back unrounded vowel /ɯ/.

[9] The extra vowel /ɯ/ does not occur in other Indo-Aryan languages but is typical for the Tibeto-Burman family.

Vowels play an important role in changing the meaning of words and the grammatical structure of sentences.

Unlike in most other Indo-Aryan languages like Assamese and Bengali, Hajong has no distinction between longer and shorter /i/ and /u/.

Since vowels play an important role in Hajong grammar, the grammatical structure is also changing.

Hajong has a strong tendency to use postpositions, rather than prepositions; to place auxiliary verbs after the action verb; to place genitive noun phrases before the possessed noun; and to have subordinators appear at the end of subordinate clauses.

Even though it is considered an Eastern Indo-Aryan language, Hajong does not conjugate verbs in the same way as Bengali or Asamiya but rather has a simplified system.

Unlike Assamese, Bengali, Sylheti and other Indo-Aryan languages, there is no word like আপুনি/আপনি/আফনে(apuni/apni/afne) to substitute you.