Mumbai Metro

The Mumbai Metro is a rapid transit system under construction in the Indian city of Mumbai. The system is designed to reduce traffic congestion in the city, and will be built in three phases over a 15-year period, with overall completion expected in 2021. When complete, the system will comprise three high-capacity metro railway lines, spanning a total of 63 kilometres (39 mi). The Mumbai Metro's operator is Mumbai Metro One Pvt Ltd (MMOPL), a joint venture company formed by Reliance Infrastructure, Veolia Transport and the Mumbai Metropolitan Region Development Authority (MMRDA).

In June 2006, Prime Minister of India Manmohan Singh inaugurated the first phase of the Mumbai Metro project. Construction work began in February 2008, and the system's first line is expected to be completed in March 2013, although some aspects of the project have been afflicted by delays and cost issues.