The Mumbai Suburban Railway system, part of the public transportation system of Mumbai, is provided for by the state-run Indian Railways’ two zonal Western Railways and Central Railways. The system carries more than 6.1 million commuters on a daily basis and constitutes more than half of the total daily passenger capacity of the Indian Railways itself. It has the highest passenger density of any urban railway system in the world.
The Mumbai Suburban Railway, as well as Indian Railways, are an offshoot of the first railway to be built by the British in India in April 1853. This was also the oldest railway system in Asia. The first train ran between Mumbai and Thane, a distance of 34 km. The Bombay Railway History Group  has been striving to document railway heritage along this line.
Given the geographical spread of the population and location of business areas, the rail network is the principal mode of mass transport in Mumbai.
To view Mumbai Sub-urban Route Map click on Link Below