1885, Bombay β First INC session, presided by W.C. Bonnerjee.
1907, Surat β Congress split into Moderates and Extremists.
1916, Lucknow β Lucknow Pact with Muslim League.
1919, Amritsar β Protest against Jallianwala Bagh massacre.
1920, Nagpur β Launch of Non-Cooperation Movement.
1924, Belgaum β Only session presided over by Gandhi.
1927, Madras β Demand for complete independence raised.
1929, Lahore β Purna Swaraj declared; 26 Jan observed as Independence Day.
1931, Karachi β Resolution on Fundamental Rights; Gandhi-Irwin Pact endorsed.
1936, Lucknow β Congress adopted socialism.
1938, Haripura β Bose formed National Planning Committee.
1939, Tripuri β Bose-Gandhi rift; Bose resigned.
1946, Meerut β Last session before independence; focus on power transfer.