Kalkatiya Urdu

According to linguist Naseer Ahmad, Kalkatiya Urdu is a distinct sociolect spoken primarily in the Muslim neighbourhoods of Kolkata. It is especially prevalent among older and less formally educated residents, many of whom trace their ancestry to migrants from Bihar. The dialect exhibits influences from regional languages such as Magadhi, Bhojpuri, and Bengali, particularly noticeable in pronunciation, grammar, and vocabulary. It is commonly used among working-class Urdu speakers for everyday communication. While the dialect is largely confined to Kolkata, some speakers also attempt to adopt the standard form of Bengali Urdu used by the educated segments of the Urdu-speaking population. Literary samples of Kalkatiya Urdu have appeared in various writings.

Apurbo Krishna Kunvar (d. 1867) used Kalkatiya Urdu in a few couplets of his Masnawi-e-Kunvar.