Who said, “criticism and independent thought are the two characteristics of a revolutionary”?

The revolutionary, who was not involved in Hardinge Bomb incident?

The Barrah dacoity was the first major venture of the revolutionary terrorists of the freedom movement in:

Who among the following had organised, in 1904, a secret society of revolutionaries named. Abhinav Bharat ?

Who among the following was the sole revolutionary of the “Kakori Conspiracy Case” who escaped from arrest by the police?

Who among the revolutionary leaders attempted to assassinate Charles Tegart the hated Police Commissioner of Calcutta?