Mumbai, formerly known as Bombay, is the capital of the state of Maharashtra, the most populous city of India, and by some measures the most populous city in the world with an estimated population of about 13 million.
Mumbai is located on Salsette Island, off the west coast of Maharashtra. Along with its neighbouring suburbs, it forms the world's sixth most populous metropolitan area. The city has a deep natural harbour and the port handles over half of India's passenger traffic and a significant amount of cargo.
Mumbai has attracted migrants from all over India because of the immense business opportunities, and the relatively high standard of living, making the city a potpourri of various communities and cultures. The city is home to India's Hindi film and television industry, known as Bollywood. Mumbai is also one of the rare cities to accommodate a national park, the Sanjay Gandhi National Park, within its city limits.