Chennai is the capital of Tamil Nadu and 4th largest city in India. It was formerly known as Madras.
Chennai is the automobile capital of India. Many automobile gaints have manufacturing units in Chennai like , TVS, Ashok Leyland, Caterpillar, Royal Enfield, TI Cycles, TAFE, Dunlop, MRF. So it is also called Detroit of South Asia.
Chennai is also an IT hub. Major global IT gaints like Infosys, TCS, Wipro, Satyam,Cognizant, HCL, IBM, Accenture, HP, EDS, Sun Microsystems, CSC,and Verizon have development centres in Chennai.