The name of the island was Mumbai. The word comes from the goddess MUMBA and AAI in marathi means mother . So it is Mamba Mata or Mumbai. It was inhabited by Kolis, Pathare Prabhu, Brahmins, Kunbis etc. They were all Marathi speaking. The british changed the name to Bombay, Vandre to Bandra, Pune to Poona and so on and so forth. The british are gone. They have taken the loot. So, now it is part of Maharashtra again and the name is MUMBAI.