Mumbai
Mumbai is India's largest city, and one of the world's most populous cities. It is the financial capital of India and a global city.  Many billionaires live there. The city is the second most-populous in the world. It has about 13 million people. Along with the neighbouring cities of Navi Mumbai and Thane, it forms the world's 4th largest urban agglomeration. They have around 19.1 million people