The हिंदी-विरोधी activists from Tamil Nadu were not satisfied with the 1967 Amendment, as it did not address their concerns about the Three language Formula. However with DMK in power, they hesitated to restart the agitation. The Tamil Nadu Students' हिंदी-विरोधी Agitation council split into several factions. The moderate factions favored letting Annadurai and the government to deal with the situation. The extremist factions restarted the agitations. They demanded scrapping of the three language formula and an end to teaching of हिंदी, abolishing the use of हिंदी commands in the National Cadet Corps (NCC), banning of हिंदी films and songs and closure of the "Dakshina Bharat हिंदी Prachara Sabha" - the Institution for propagation of हिंदी in South India.

On 19 December 1967, the agitation was restarted. It turned violent in 21 December and acts of arson and looting were reported in the state. Annadurai defused the situation by accepting most of their demands. On 23 January 1968, a resolution was passed in the Tamil Nadu Legislative Assembly. It accomplished the following:

The Three-Language policy was scrapped and हिंदी was eliminated from the curriculum. Only इंग्रजी and Tamil were to be taught, the use of हिंदी commands in NCC was banned, Tamil was to be introduced as medium of instruction in all colleges and as the language of administration within five years, the Central Government was urged to end the special status accorded to हिंदी in the Constitution and treat all languages equally, It was urged to provide financial assistance for development of all languages mentioned in the Eighth Schedule of the Constitution. These measures satisfied the agitators and normality returned by February 1968.

परंपरा
१९६३ चा अधिकृत भाषा कायदा
१९६८ चा सत्याग्रह
भाषा आणि भारतीय संविधान