The Chennai Metro is an urban Mass Rapid Transit System (MRTS) serving Tamil Nadu’s capital city Chennai. Started in 2015, the Chennai Metro is the 4th longest metro network in India. As of March 2022, the Chennai Metro has two operational metro lines and three lines under-construction. The Chennai Metro is built and operated by the Chennai Metro Rail Corporation (CMRL). The Chennai Metro system has a mix of elevated and underground metro stations.
The aim of the project, according to the CMRL website, is to provide the people of Chennai with a “fast, reliable, convenient, efficient, modern and economical mode of public transport, which is properly integrated with other forms of public and private transport including buses, sub-urban trains and MRTS.”