Tamil Nadu rural areas. There are 29 national highways in the state, covering a total distance of . The state is also a terminus for the Golden Quadrilateral project, that connects Indian metropolises like (New Delhi, Mumbai, Bengaluru, Chennai and Kolkata). The state has a total road length of , of which are maintained by Highways Department. This is nearly 2.5 times higher than the density of all-India road network. The major road junctions are Chennai, Vellore, Madurai, Trichy, Coimbatore, Salem, Tirunelveli, Tuticorin, Karur, Krishnagiri, Dindigul and Kanniyakumari. Road transport is provided by state owned Tamil Nadu State Transport Corporation and State
Geography of Tamil Nadu Geography of Tamil Nadu Tamil Nadu is the eleventh largest state in India and covers an area of . It is bordered by Kerala to the west, Karnataka to the northwest, Andhra Pradesh to the north, the Bay of Bengal to the east and the Indian Ocean to the south. Cape Comorin (Kanyakumari), the southernmost tip of the Indian Peninsula which is the meeting point of the Arabian Sea, the Bay of Bengal, and the Indian Ocean. The western, southern and the north-western parts are hilly and rich in vegetation. Tamil Nadu is the only state in India which has