The most populous city in India is Mumbai, located in the state of Maharashtra. As per the latest estimates, Mumbai has a population of over 20 million in its metropolitan area, making it not only the most populated city in India but also one of the most crowded urban centers globally. Known as the financial capital of the country, Mumbai is home to the Bombay Stock Exchange, major corporate headquarters, and the Bollywood film industry. Its diverse population includes people from every corner of India, creating a unique multicultural environment.

The city falls under the jurisdiction of Mumbai City and Mumbai Suburban districts. Mumbai is characterized by a sharp contrast between soaring skyscrapers and sprawling slums, such as Dharavi, one of Asia's largest. Despite facing challenges like congestion, pollution, and housing shortages, Mumbai thrives with unmatched energy, entrepreneurial spirit, and cultural vibrancy. It continues to attract migrants seeking better economic opportunities, making it a dynamic yet complex urban landscape.