1. Tamil Nadu has a well – developed rail network as part of Southern Railway, Headquartered at Chennai.
2. The present Southern Railway network extends over a large area of India’s Southern Peninsula, covering the States of Tamil Nadu, Kerala, Puducherry, minor portions of Karnataka and Andhra Pradesh.
3. Tamil Nadu has a total railway track length of 6,693 km and there are 690 railway stations in the State. The system connects it with most major cities in India.
4. Main rail junctions in the State include Chennai, Coimbatore, Erode, Madurai, Salem, Tiruchirapalli and Tirunelveli.
5. Chennai has a well – established Suburban Railway network, a Mass Rapid Transport System and is currently developing a Metro system, with its first underground stretch operational since May 2017.