Hindustan Socialist Republican Association (HSRA) was a revolutionary organisation, also known as Hindustan Socialist Republican Army established in 1928 at Feroz Shah Kotla in New Delhi by Chandrasekhar Azad, Bhagat Singh, Sukhdev Thapar and others. Previously it was known as Hindustan Republican Association (HRA) whose written constitution and published manifesto titled The Revolutionary were produced as evidence in the Kakori conspiracy case of 1925.
The Non-cooperation movement of 1920 led to large scale mobilisation of Indian population against the British rule. Though intended as a Nonviolent resistance movement, it soon turned violent. After the Chauri Chaura incident, Mohandas K. Gandhi suspended the movement to prevent escalation of violence. This disillusioned a section of nationalists who felt the suspension was premature and unwarranted. The political vacuum created by the suspension led to the formation of revolutionary movements by the more radical amongst those who sought to overthrow British rule.
In February 1922 some agitating farmers were killed in Chauri Chaura by the police. Consequently,the police station of Chauri Chaura was attacked by the people and 22 policemen were burnt alive.
Without ascertaining the facts behind this incident, Mohandas K. Gandhi, better known as Mahatma Gandhi,declared an immediate stop the non-cooperation movement(he himself had given a call for it) without consulting any executive committee member of the Congress. Ram Prasad Bismil and his group of youth strongly opposed Gandhi in the Gaya Congress of 1922. When Gandhi refused to rescind his decision, the Indian National Congress was divided into two groups – one liberal and the other for rebellion. In January 1923, the liberal group formed a new Swaraj Party under the joint leadership of Moti Lal Nehru and Chittranjan Das, and the youth group formed a revolutionary party under the leadership of Bismil.