|This article needs additional citations for verification. (September 2016) (Learn how and when to remove this template message)|
|Born||15 May 1907
Ludhiana, Punjab, British India
|Died||23 March 1931
Lahore, British India, (now in Punjab, Pakistan)
|Organization||Hindustan Socialist Republican Association|
|Movement||Indian Independence movement|
Sukhdev was born on 15 May 1907 in Ludhiana, Punjab born in Ludhiana, Punjab, British India to Ramlal Thapar (father) and Ila Devi. Sukhdev's father died soon and he was brought up by his uncle Lala Achintram.
Sukhdev Thapar was a member of the Hindustan Socialist Republican Association (HSRA), and organised revolutionary cells in Punjab and other areas of North India.
Sukhdev is best remembered for his involvement in the Lahore Conspiracy Case of 18 December 1928 and its aftermath. He was an accomplice of Bhagat Singh, and Shivaram Rajguru, whose conspiracy led to the assassination of Deputy Superintendent of Police, J. P. Saunders in 1928 in response to the violent death of a veteran leader, Lala Lajpat Rai. After the Central Assembly Hall bombings in New Delhi on 8 April 1929, the conspirators were arrested and convicted of their crime.