The Hindustan Socialist Republican Association (HSRA) was a revolutionary organization active in the late 1920s. After the arrests and executions of key leaders like Bhagat Singh, Sukhdev, and Rajguru in March 1931, Chandra Shekhar Azad remained one of the last major leaders at large. His death in an encounter with the police in Alfred Park, Allahabad, in February 1931 dealt a fatal blow to the core leadership and organized activities of the HSRA, effectively marking the end of the movement under its original structure and leadership.