The Chennai Metro is a rapid transit system serving the city of Chennai, Tamil Nadu, India. The system commenced service in 2015 after partially opening the first phase of the project. The network consists of two colour-coded lines covering a length of 35 kilometres (22 mi).
The Chennai Metro Rail Limited (CMRL), a joint venture between Government of India and the Government of Tamil Nadu built and operates the Chennai Metro. The system has a mix of underground and elevated stations and uses standard gauge. The services operate daily between 06:00 and 22:00 with a varying frequency of 10 to 20 minutes.
