Explanation:

Food and Economic Agitation 1974

=> AASU created on 8th August 1962

=> 1974- Food and Economic Agitation against poor food policy of Central government.

=> 21 demands were put to the Central government.

=> 1 one of them was to identify and deport illegal immigrants out of Assam-later led to Assam Movement (1979 to 85)

=> AASU activists Gajen Ingti and Putul Saikia had laid down their lives in police firing in Morigaon on June 10

=> 10th June-Chhatra Sanhati Diwas or students’ integration day is observed by AASU