Tamil Nadu is a state in southern India. Its capital and largest city is Chennai. Tamil Nadu lies within the southernmost a part of the Indian subcontinent and is bordered by the union territory of Puducherry and therefore the South Indian states of Kerala, Karnataka, and Andhra Pradesh . its bounded by the Eastern Ghats on the north, by the Nilgiri Mountains, the Meghamalai Hills, and Kerala on the west, by the Bay of Bengal within the east, by the Gulf of Mannar and therefore the Palk Strait on the southeast, and by the Indian Ocean on the south. The state shares a maritime border with the state of Sri Lanka .
The region was ruled by several empires, including the three great empires – Chera, Chola and Pandyan empires, which shape the regions cuisine, culture, and architecture. After the autumn of Kingdom of Mysore, British Colonial rule during the fashionable period led to the emergence of Chennai, then referred to as Madras, as a metropolitan city. Modern-day Tamil Nadu was formed in 1956 after the reorganisation of states on linguistic lines. The state is home to variety of historic buildings, multi-religious pilgrimage sites, hill stations and three World Heritage sites.
Tamil Nadu is that the tenth largest Indian state by area and therefore the sixth largest by population. The economy of Tamil Nadu is that the second-largest state economy in India with ₹18.45 trillion (US$260 billion) in gross domestic product with a per capita GDP of ₹218,000 (US$3,100). It ranks 11th among all Indian states in human development index. Tamil Nadu is that the most urbanised state in India, and one among the foremost industrialised states; the manufacturing sector accounts for quite one-third of the states GDP. Its official language is Tamil, which is one among the longest-surviving classical languages within the world.