The Mumbai Metro is a rapid transit system being built in Mumbai, India, which is intended to provide a designed to reduce traffic congestion within the city.  The first phase of the project spans 63 kilometers and will be implemented through a 35-year Build-Operate-Transfer scheme.  As of date, the 11.07-km Versova-Andheri-Ghatkopar Metro corridor, which is the first of three high-capacity lines in this initial phase, is under construction. Still within Phase 1, this line will later be followed by the 39.2-km Dahisar(E)-Charkop-Bandra-Mankhurd line and the 30-km Colaba-Bandra-Airport lines.

Phase 2 of Mumbai Metro One shall be the construction and implementation of a 40-km line beginning from Carnac Bunder, until Teen Haath Naka.  Phase 3 is composed of the Airport-KanjurMarg line (9.5 km) and Andheri(E)-Dahisar(E) line (18 km).

Technical assistance during testing and commissioning was provided.  This involves the following disciplines:  Electro-mechanical, rolling stock, stations and depot design, and operations and maintenance.

SPI began this privately funded (SYSTRA S.A.) 9-month project in March 2012.