Chennai, formerly known as Madras, is the capital of the southern state of Tamil Nadu in India, and is the country's fourth-largest city. It is on the Coromandel coast of the Bay of Bengal. The 367 year old city is the 34th largest metropolitan area in the world, and has the 2nd longest seashore in the world.
Chennai, being the capital of Tamil Nadu, is home to a host of Tamil culture art forms including dance, literature, sculpture, music and cinema.The season for Bharatnatyam and Carnatic Music draws visitors and aficionados from the world over. Being the capital of Tamil Nadu, the preferred language of communication amongst the local population is Tamil. However, English is widely spoken as the language of commerce and English speaking visitors should have no problem getting around.
Source: Wikitravel