On 8th April 1929, who among the following two revolutionists threw a bomb in the Central Legislative Assembly?

Correct option is C

The correct answer is (c) Bhagat Singh and Batukeshwar Dutt.
 On 8th April 1929, Bhagat Singh and Batukeshwar Dutt, both revolutionaries, threw a bomb in the Central Legislative Assembly in Delhi.
 This act was a part of their protest against the Public Safety Bill and the Trade Disputes Bill, which they saw as repressive laws enacted by the British government.
 Bhagat Singh, Rajguru and Sukhdev were sentenced to death in the Lahore conspiracy case and ordered to be hanged on 23 March 1931.
Facts to remember:
 The Forward Bloc of the Indian National Congress was formed on June 22, 1939, by Netaji Subhas Chandra Bose, who had resigned from the presidency of the Indian National Congress on 29 April after being outmanoeuvred by Mohandas K. Gandhi.
 Subhas Chandra Bose was elected as the President of the Indian National Congress (INC) in 1939 against Dr Pattabhi Sitaramayya.