MumbaiMumbai is the capital of the Indian state of Maharashtra. It is the most populous city in India, and the second most populous city in the world, with a population of approximately 14 million. The official language of Mumbai is Marathi. But many other languages are also widely used, particularly the Mumbaiian Hindi. Mumbai is the commercial and entertainment capital of India, generating 5% of India's GDP, and is home to important financial institutions such as the Reserve Bank of India, the Bombay Stock Exchange, the National Stock Exchange of India and the corporate headquarters of numerous Indian companies and multinational corporations. The city also houses India's Hindi & Marathi film and television industry, known as Bollywood. Mumbai's business opportunities, as well as its potential to offer a higher standard of living, attract migrants from all over India and, in turn, make the city a potpourri of many communities and cultures.StadiumWankhede StadiumTransportPublic transport systems in Mumbai include the Mumbai Suburban Railway, Brihanmumbai Electric Supply and Transport (BEST) buses, black and yellow metered taxis, auto rickshaws and ferries. SightseeingMumbai's culture is a blend of traditional festivals, food, music and theatres. The city offers a cosmopolitan and diverse lifestyle with a variety of food, entertainment and night life, available in a form and abundance comparable to that in other world capitals. Mumbai's history as a major trading centre has led to a diverse range of cultures, religions and cuisines coexisting in the city.Must see sights in the city include the Elephanta Caves, one of Mumbai's two UNESCO World Heritage Site (the other is Chhatrapati Shivaji Terminus) featuring rock-cut Shaivistic statues.