Mumbai has trains connecting it to all the major cities of the country. Intercity trains in Mumbai are very good, and are the fastest and cheapest way to move around in Mumbai. Mumbai is virtually the only place in India where it's worth taking trains for travel within a city. There are fast trains every 10-12 minutes and slow trains, which stop at all stations every 3 minutes. Trains begin operating just after 4 a.m. and run until almost 1 a.m. The service is efficient and easy to navigate but woefully overcrowded. There are special 'ladies only' carriages as well as first class carriages. First class travel costs 10-15 times more than second on single fare.

The most useful service is the Western Railway operating from Churchgate heading north to stations such as Vile Parle (Domestic Airport), Andheri (International Airport & SEEPZ) and Goregaon (Bombay Exhibition Center).

Western Railway running between Churchgate and Virar.

Central Railway running between Chhatrapati Shivaji Terminus (C.S.T) and Kasara/Karjat

Harbour Line running between Chhatrapati Shivaji Terminus (C.S.T) and Panvel.