Tamil Nadu literally The Land of Tamils is one of the 29 states of India. Its capital and largest city are Chennai . Tamil Nadu lies in the southernmost part of the Indian Peninsula and is bordered by the union territory of Puducherry and the South Indian states of Kerala, Karnataka, and Andhra Pradesh. It is bounded by the Eastern Ghats on the north, by the Nilgiri, the Anamalai Hills, and Kerala on the west, by the Bay of Bengal in the east, by the Gulf of Mannar and the Palk Strait on the south-east, and by the Indian Ocean on the south. The state shares a maritime border with the nation of Sri Lanka.