Sukhdev Thapar (May 15, 1907 – March 23, 1931) born in Ludhiana, Punjab, British India, was an Indian revolutionary. He was a senior member of the HSRA – Hindustan Socialist Republican Association. At the age of 23, he was hanged. He had his education at the National College, Lahore. As part of his revolutionary activity, he organized revolutionary cells not only in Punjab but many other regions in the Northern parts of India. He vowed to unfasten India from the shackles of dominion of the British. In an effort to cease communalism, he geared up teenagers in the conflict for freedom by forming the Naujawan Bharat Sabha.
In the conflict for independence in India, Sukhdev played a main position. He sacrificed his life for the liberation of India from the British Rule. It was for his involvement in the Lahore Conspiracy Case of December 18, 1928, and its aftermath that Sukhdev is best remembered for. Shivaram Rajguru and Bhagat Singh, were his accomplices. The Lahore conspiracy led to the assassination of J.P.Saunders, the Deputy Superintendent of Police, in the year 1928. Violent death of a veteran leader led to the assassination of the J.P.Saunders. The three men were hanged on March 23, 1931 and cremated on the banks of River Satluj secretly.