With reference to Indian freedom struggle, The Rowlatt Act aroused a wave of popular indignation and led to the Jallianwala Bagh massacre,  Subhas Chandra Bose formed the Forward Bloc and Bhagat Singh was one of the founders of Hindustan Republican Socialist Association. All these statements are true instead of this one which states that  In 1931, the Congress Session at Karachiopposed Gandhi-Irwin Pact.

Therefore last statement is the answer.