Chennai Metro Rail Limited

Chennai Metro Rail Limited (CMRL) is a centre-state joint venture that built and operates the Chennai Metro. It was established in 2007 and is headquartered in Chennai. CMRL is also involved in the planning and implementation of other metro rail and monorail projects in Tamil Nadu.

History
Government of Tamil Nadu approved the Chennai Metro project in November 2007. Chennai Metro Rail Limited (CMRL), a SPV was established in December 2007 as a joint venture between the Government of India and Government of Tamil Nadu, and is headquartered in Chennai. In June 2015, commercial operations of the Chennai metro started and the first phase was completed by February 2019. Since 2019, CMRL is involved in the construction of the second phase of the Chennai metro.

Administration and operations
CMRL is headquartered at MetroS building in Anna Salai, Nandanam. The company is headed by a board consisting of 12 directors, five nominated by Government of India including the chairman, five nominated by Government of Tamil Nadu including the Managing director and two full time operational directors. The main operational control center (OCC) is located in Koyambedu where the movement of trains and real-time CCTV footage obtained is monitored. , CMRL operates two colour-coded lines covering a length of 54.1 km. Chennai Metro maintains depots at Koyambedu and Wimco Nagar, which house maintenance workshops, stabling lines, test tracks and washing plant for the trains.

Other projects
CMRL will take over Chennai Mass Rapid Transit System (MRTS) system from Southern Railway once the under construction expansion of MRTS is complete. It is also involved in the planning of light rail and extension of metro in Chennai. CMRL also undertakes other projects including the development of metro rail transport in the cities of Coimbatore, Madurai and Tiruchirapalli. It has also proposed the development of Central Square around CMRL headquarters with commercial complexes and multi-storied buildings.