India
India is home to two major language families: Indo-Aryan (spoken by about 74% of the population) and Dravidian (spoken by 24% of the population). Other languages spoken in India come from the Austroasiatic and Sino-Tibetan language families. India has no national language. Hindi, with the largest number of speakers, is the official language of the government. English is used extensively in business and administration and has the status of a "subsidiary official language"; it is important in education, especially as a medium of higher education. Each state and union territory has one or more official languages, and the constitution recognises in particular 22 "scheduled languages".
Tamil Nadu
Tamil (தமிழ்) is the sole official language of Tamil Nadu while English is declared an additional official language for communication purposes. When India adopted national standards. Tamil was the first language to be recognised as a classical language of India. As of 2001 census Tamil is spoken as the first language by nearly 90 percent of the state's population followed by Telugu (5.65%), Kannada (1.67%), Urdu (1.51%) and Malayalam (0.89%). Other Languages spoken are Hindi, Gujarati, Marathi, Bengali etc. which are mostly spoken by people whose first language is not Tamil, or, Native Tamil speakers who have knowledge of these languages.