Court case

 Trial and Execution  

Shortly after his arrest and trial for the Assembly bombing, the British came to know of his involvement in the murder of J. P. Saunders. Bhagat Singh, Rajguru, and Sukhdev were charged with the murder. Bhagat Singh decided to use the court as a tool to publicize his cause for the independence of India. He admitted to the murder and made statements against the British rule during the trial. The case was ordered to be carried out without members of the HSRA present at the hearing. This created an uproar amongst Singh's supporters as he could no longer publicise his views.

 While in jail, Bhagat Singh and other prisoners launched a hunger strike advocating for the rights of prisoners and those facing trial. The reason for the strike was that British murderers and thieves were treated better than Indian political prisoners, who, by law, were meant to be given better rights. The aims in their strike were to ensure a decent standard of food for political prisoners, the availability of books and a daily newspaper, as well as better clothing and the supply of toilet necessities and other hygienic necessities. He also demanded that political prisoners should not be forced to do any labour or undignified work. During this hunger strike that lasted 63 days and ended with the British succumbing to his wishes, he gained much popularity among the common Indians. Before the strike his popularity was limited mainly to the Punjab region. 

Bhagat Singh also maintained the use of a diary, which he eventually made to fill 404 pages. In this diary he made numerous notes relating to the quotations and popular sayings of various people whose views he supported. Prominent in his diary were the views of Karl Marx and Friedrich Engels. The comments in his diary led to an understanding of the philosophical thinking of Bhagat Singh. Before dying he also wrote a pamphlet entitled "Why I am an atheist", as he was being accused of vanity by not accepting God in the face of death. 

On March 23, 1931, Bhagat Singh was hanged in Lahore with his fellow comrades Rajguru and Sukhdev. His supporters, who had been protesting against the hanging, immediately declared him as a shaheed or martyr. According to the Superintendent of Police at the time, V.N. Smith, the hanging was advanced: 

Normally execution took place at 8 am, but it was decided to act at once before the public could become aware of what had happened...At about 7 pm shouts of Inquilab Zindabad were heard from inside the jail. This was correctly, interpreted as a signal that the final curtain was about to drop. Singh was cremated at Hussainiwala on banks of Sutlej river. Today, the Bhagat Singh Memorial commemorates freedom fighters of India