Languages of India
Until the Twenty-first Amendment of the Constitution of India in 1967, the country recognised 14 official regional languages. The Eighth Schedule and the Seventy-First Amendment provided for the inclusion of Sindhi, Konkani, Meitei and Nepali, thereby increasing the number of official regional languages of India to 18. The Eighth Schedule of the Constitution of India, as of 1 December 2007, lists 22 languages, which are given in the table below together with the speaking population and the regions where they are used. 
The individual states, the borders of most of which are or were drawn on socio-linguistic lines, can legislate their own official languages, depending on their linguistic demographics. The official languages chosen reflect the predominant as well as politically significant languages spoken in that state. Certain states having a linguistically defined territory may have only the predominant language in that state as its official language, examples being Karnataka and Gujarat, which have Kannada and Gujarati as their sole official language respectively. Telangana, with a sizeable Urdu-speaking Muslim population, has two languages, Telugu and Urdu, as its official languages.
Dravidian parties
DMK leaders also perceived that the attempts to declare Hindi as the sole national language of India was an attempt impose an Aryan language unwilling people in the South. According to the terms of the Indian constitution dated 26 January 1965, English as an official language of India would come to an end and Hindi would become the sole official language. However, the Madras Anti-Hindi agitation in 1965 compelled the Central Government in India change its language policy, allowing English to continue as an official language.
Although DMK was not directly involved in the violence that marred the agitation, the protest itself catapulted DMK to political power in the State in the 1967 legislative elections. Annadurai became the first non-Congress Chief Minister of the post-1950 Madras state as a result.