The Hindu News Analysis: 02 May 2015
At 4:00 it is mentioned that the Assam Accord was signed in March 1974. Actually it was signed in 1985.
The Assam Accord (1985) was a Memorandum of Settlement (MoS) signed between representatives of the Government of India and the leaders of the Assam Movement in New Delhi on 15 August 1985. The accord brought an end to the Assam Agitation and paved the way for the leaders of the agitation to form a political party and form a government in the state of Assam soon after. (Wikipedia)