Roadways

The length of road network in Tamil Nadu is nearly 1.70 lakh kms. Private
bus operators link the important cities and government buses ply the entire
south. The inter-state buses run by State Express Transport Corporation
connects Chennai with Karnataka, Kerala, and Andhra Pradesh.
Railways

Centralized at Chennai, the Southern Railways present network expands over
a large area of India's Southern Peninsula, covering the states of Tamil
Nadu, Kerala, Pondicherry, a major portion of Karnataka and a small portion
of Andhra Pradesh.
Tamil Nadu has a complete railway track length of 6,693-kms and there are
690 railway stations in the state. Main rail junctions in the State include
Chennai, Madurai, Tiruchirapalli, Salem, Coimbatore, etc.
In Chennai, the Central Railway Station is 5-km from the city centre and
trains from nearly all cities of India halt here. Broad gauge train services
connect the city with New Delhi, Mumbai, Kolkatta (Calcutta), Cochin,
Thiruvananthapuram, Hyderabad, Bangalore, Coimbatore, Lucknow, Guwahati and
other important cities. The metre gauge train services cater to the south of
Chennai, including Madurai, Rameshwaram, Tirunelveli and Tuticorin. The
railhead for metre gauge services is situated at the Egmore station.
Development of MRTS Phase I in Chennai

The first phase of the Mass Rapid Transit System (MRTS) from Chennai Beach
to Thirumylai for a length of 8.55 km. was taken up for implementation by
Government of India (GOI) through the Ministry of Railways in 1983-84. The
project was cleared by the Union Planning Commission and sanctioned by the
Railway Board in 1983-84 at an estimated cost of Rs 53.46 crores. The
project has been completed and commissioned in October 1997. The cost of
completion of the project is Rs. 260 crores.