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
Economy of Tamil Nadu of the Government of Tamil Nadu with figures in millions of Indian Rupees. See also and . Non-tax revenues of local bodies are excluded. Amount in millions Economy of Tamil Nadu Tamil Nadu has the second-largest economy in India. Over 50% of the state is urbanized, accounting for 9.6% of the urban population in the country, while only comprising 6% of India's total population. Services contributes to 45% of the economic activity in the state, followed by manufacturing at 34% and agriculture at 21%. Government is the major investor in the state, with 52% of total investments, followed by private