Bhagat Singh (Sept/Oct 1907– 23 March 1931) was an Indian socialist revolutionary considered to be one of the most influential revolutionaries of the Indian independence movement. He is often referred to as Shaheed Bhagat Singh, the word "Shaheed" meaning "martyr" in a number of Indian languages.
Shivaram Hari Rajguru (24 August 1908 – 23 March 1931)was an Indian revolutionary from Maharashtra, known mainly for his involvement in the assassination of a British Raj police officer. On 23rd March, 1931 he was hanged by the British government along with Bhagat Singh.
Sukhdev Thapar (15 May 1907 – 23 March 1931) was an Indian revolutionary. He was a senior member of Hindustan Socialist Republican Association. He was hanged on 23 March 1931 at the age of 23. His ancestral house is in Naughara Mohalla of Ludhiana town, Punjab, India. He was son of Ram Lal and Ralli Devi.