Linguistic rights
The constitution of India was first drafted on January 26, 1950. It is estimated that there are about 1500 languages in India. Article 343–345 declared that the official languages of India for communication with centre will be Hindi and English. There are 22 official languages identified by constitution. Article 345 states that "the Legislature of a state may by law adopt any one or more of the languages in use in the State or Hindi as the language or languages to be used for all or any of the official purposes of that State: Provided that, until the Legislature of the State otherwise provides by law, the English language shall continue to be used for those official purposes within the State for which it was being used immediately before the commencement of this Constitution".
Rise of Dravidian parties to power in Tamil Nadu
The major driving force of the anti-Hindi agitation was not the questioning of protecting Tamil, but questions of the future of Tamils. Hindi as a suitable candidate for the official language of India after independence was first proposed by the Motilal Nehru Report of 1928. An Official Language Commission appointed under the terms of the Constitution in 1955 to review the situation supported Hindi as the sole official language, although members from Bengal and Madras dissented in favour of English. As of the 1961 census, there were 1652 languages. Hindi as an official language was opposed for two reasons: the first because the numbers of people with knowledge of English were fairly evenly spread, and also that imposition of Hindi would give a major advantage in terms of job and educational possibilities to those who had Hindi as their mother tongue. In effect a Tamil who would desire to pursue union civil service would have to learn three languages, Tamil, Hindi and English, which are members of three different language families and each is written in a different script. Therefore, a three-language formula proposed was seen as a great educational burden imposed on non-Hindi-speaking states. Nehru promised in 1959 that the interests of the non-Hindi speakers would be safeguarded, and so did Lal Bahadur Shastri later, but those promises didn't put the fears of non-Hindi speakers to rest.