Wikipedia
Dakhini also spelled Dakkhani and Deccani, arose as a Muslim court language of the Deccan Plateau ca. 1300 AD in ways similar to Urdu. It is similar to Urdu in its influence from Arabic and Persian with a Hindi base, but differs because of the strong influence of Marathi, Konkani, Telugu, and Kannada spoken in the states of Maharashtra, Telangana, Andhra Pradesh and Karnataka. This dialect has a rich and extensive literary heritage. Despite it being the native language of most Muslims of the erstwhile Princely States of Hyderabad State and the Kingdom of Mysore, it is also the spoken form of Hindi-Urdu for most Hindus and non- Hindus of the region to this day and is the most common "street-language" in several cities including Hyderabad, Bangalore and Aurangabad. Dakhini is the native language of the Dakhini Muslims.