Tamil Nadu Diesel Loco shed. MRTS which covers from Chennai Beach to Velachery, and metro rail also running between Alandur and koyambedu station. Tamil Nadu has four international airports namely Chennai International Airport, Coimbatore International Airport, Tiruchirapalli International Airport and Madurai International Airport. Salem Airport and Tuticorin Airport are domestic airports. Chennai International Airport is a major international airport and aviation hub in South Asia. Besides civilian airports, the state has four air bases of the Indian Air Force namely Thanjavur AFS, Tambram AFS, Coimbatore AFS and two naval air stations INS Rajali and INS Parundu of Indian Navy. Tamil Nadu has
State Industries Promotion Corporation of Tamil Nadu and Manapparai soon. SIPCOT IT Park is the largest Information Technology Park in Asia, located in Padur, Siruseri, along the IT Corridor, Chengalpattu taluk, Kancheepuram District. State Industries Promotion Corporation of Tamil Nadu The State Industries Promotion Corporation of Tamil Nadu Limited (SIPCOT) (), Limited is an institution owned by the Government of Tamil Nadu. The State Industries Promotion Corporation of Tamil Nadu Limited (SIPCOT) was formed in the year 1971, to promote industrial growth in the State and to advance term loans to medium and large industries The Functions of State Industries Promotion Corporation of Tamil Nadu Limited (SIPCOT)