| 1. Sukhdev Thapar played a key role in the Hindustan Socialist Republican Association's anti-British activities. |
| 2. He was executed at a young age of 23 due to his participation in revolutionary actions. |
| 3. Sukhdev Thapar was instrumental in organizing revolutionary groups and making important decisions for the HSRA. |
| 4. He, along with Bhagat Singh and Shivaram Rajguru, was involved in the assassination of J. P. Saunders to avenge Lala Lajpat Rai's death. |
| 5. Sukhdev initiated a hunger strike while imprisoned during the Lahore Conspiracy Case. |
| 6. He was listed as the primary accused in the FIR filed for the Lahore Conspiracy Case. |
| 7. Sukhdev Thapar, Bhagat Singh, and Rajguru were executed by hanging at Lahore Central Jail on 23 March 1931. |
| 8. He was the chief of the Punjab unit of the HSRA. |
| 9. Sukhdev was also a member of the Naujawan Bharat Sabha. |
| 10. His father passed away when he was three years old, and he was raised by his uncle Achint Ram, an anti-colonial activist. |
| 11. While still in school, he distributed reading materials to children in a Dalit village denied access to education and helped people affected by the 1918 Spanish flu pandemic. |
| 12. He was inspired by the Russian Revolution and Lenin's ideas, and was a good debater who gave fiery speeches to ignite the freedom struggle in Punjab. |
| 13. During the 1929 prison hunger strike, which lasted 63 days, he protested against the torture of Indian political prisoners; the strike ended after British authorities met some demands. |
| 14. He organized revolutionary cells in Punjab and other areas of North India as a devoted leader of the HSRA. |
| 15. Their remains were surreptitiously burned on the banks of the Sutlej River after execution. |
| 16. He was deeply impressed by revolutionaries like Pandit Ram Prasad Bismil and Chandrashekhar Azad. |
| 17. In his last letter dated 7 October 1930, he criticized mindless violence and justified HSRA's actions as fulfilling people's aspirations. |
