Multiple choice general knowledge The original site of Mumbai started as a group of how many islands 3 7 5 11 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Mumbai (then Bombay) was originally an archipelago of seven islands: Bombay Island, Colaba, Old Woman's Island (Little Colaba), Mazgaon, Parel, Worli, and Mahim. These were later joined through reclamation and landfills to form the modern city.