Observed on March 23rd in India, it commemorates the execution of Bhagat Singh, Sukhdev Thapar, and Shivaram Rajguru by the British in 1931. This day is dedicated to remembering their sacrifice and contributions to India's freedom struggle.

A significant legal case initiated by the British government against revolutionaries like Bhagat Singh, Sukhdev Thapar, and Shivaram Rajguru. They were implicated for the assassination of British police officer J.P. Saunders in 1928, mistakenly believing him to be James A. Scott, who had ordered the lathi charge that led to Lala Lajpat Rai's death.

A revolutionary organisation founded in 1924, originally named the Hindustan Republican Association, which later evolved into the HSRA after Bhagat Singh and others joined. It aimed to achieve Indian independence through armed revolution and established a socialist republic.