[5] In addition to language, cultural markers around attire and customs connect individuals into the ethnic identity Kochila.

[5][6] The language is widely utilized by all members of the community and coexists with the use of Nepali.

Kochila Tharu communities are not found in isolation, but live in districts intermixed with speakers of other languages.

Kochila Tharu have superficial similarities with neighbouring languages such as Bhojpuri, Maithili, Bengali and Rajbanshi due to their proximity with these various ethnicities depending upon the districts that they are present.

[7] There are 3 main dialects of Kochila Tharu spoken throughout mid-central and eastern Nepal which are into the following varieties due to their intelligibility:[6] Western Kochila: 65,000 speakers in Mid eastern Nepal Central Kochila (Saptari or Saptariya Tharu): 140,000 speakers in Eastern Nepal Eastern Kochila (Morangiya Tharu): 160,000 speakers in Eastern Nepal The lexical similarity percentages among the three Kochila Tharu varieties show that the lexical similarity percentages vary from 65% to 73%.