formerly Madras
State (pop., 2001 prelim.: 62,110,839), southeastern India.
Lying on the Bay of Bengal , its coastline includes the enclaves of Pondicherry and Karaikal (both parts of Pondicherry union territory); it is also bordered by Kerala , Karnataka , and Andhra Pradesh states. Tamil Nadu covers an area of 50,216 sq mi (130,058 sq km), and its capital is Chennai (Madras). Its interior includes the fertile Kaveri River delta. By the 2nd century AD the region was occupied by Tamil kingdoms. The Hindu kingdom of Vijayanagar ruled the southern regions from 1336 to 1565. The Portuguese entered the area in 1498, only to be displaced by the Dutch in the 16th17th centuries. The British established a settlement in 1611, which expanded to become the separate presidency of Madras, which lasted from 1653 to 1946. The state of Tamil Nadu was formed in 1956. It is one of India's most industrialized states, manufacturing vehicles, electrical equipment, and chemicals.