Mumbai Hindi, also known as Mumbaiya Hindi, Bambaiyya, Mumbaiyya or Mumbai Hindi-Urdu, is a variety of Hindi-Urdu, spoken in Mumbai (formerly Bombay), India. The words and pronunciations of Bombay Hindi are derived mainly from Hindi and Urdu, collectively known as Hindi-Urdu or Hindustani. In addition, the predominant substratum influence on Bombay is Marathi. Marathi is the official and majority language of Maharashtra. Bombay Hindi also incorporates words from Gujarati and Konkani.