Though 2,150 trains hurtle through the city, carrying millions of Mumbaikars to their destinations but for the 75 lakh odd commuters, every day brings with it the challenge of searching for foot-space in a train that cannot hold a pebble more. Time has truly come for ‘the lifeline’ of Mumbai to now change to Metro –a grade separated rail based Mass Rapid Transit System. Mumbai Metro Line - 3 (MML - 3) is one of such key projects to improve the transportation scenario in the financial capital of India i.e. Mumbai. MML-3 project - a 33.5Km. long corridor running along Colaba-Bandra-SEEPZ, envisages to decongest the traffic situation in Greater Mumbai. Mumbai Metro Rail Corporation Limited (MMRC) is the nodal agency responsible for the implementation of Mumbai Metro Line–3(MML-3) project. It has been constituted as a JV of the Govt. of India(GOI) and the Government of Maharashtra(GOM) on 50:50 sharing basis.