Gandhi controversy:

There have been suggestions that Gandhi had an opportunity to stop Singh's execution but refrained from doing so. Another theory is that Gandhi actively conspired with the British to have Singh executed. In contrast, Gandhi's supporters argue that he did not have enough influence with the British to stop the execution, much less arrange it, but claim that he did his best to save Singh's life. They also assert that Singh's role in the independence movement was no threat to Gandhi's role as its leader, so he would have no reason to want him dead. Gandhi always maintained that he was a great admirer of Singh's patriotism. He also stated that he was opposed to Singh's execution (and for that matter, capital punishment in general) and proclaimed that he had no power to stop it. Of Singh's execution Gandhi said: "The government certainly had the right to hang these men. However, there are some rights which do credit to those who possess them only if they are enjoyed in name only." Gandhi also once remarked about capital punishment: "I cannot in all conscience agree to anyone being sent to the gallows. God alone can take life, because he alone gives it." Gandhi had managed to have 90,000 political prisoners, who were not members of his Satyagraha movement, released under the Gandhi–Irwin Pact. According to a report in the Indian magazine Frontline, he did plead several times for the commutation of the death sentences of Singh, Rajguru and Sukhdev, including a personal visit on 19 March 1931. In a letter to the Viceroy on the day of their execution, he pleaded fervently for commutation, not knowing that the letter would arrive too late. Lord Irwin, the Viceroy, later said:
As I listened to Mr. Gandhi putting the case for commutation before me, I reflected first on what significance it surely was that the apostle of non-violence should so earnestly be pleading the cause of the devotees of a creed so fundamentally opposed to his own, but I should regard it as wholly wrong to allow my judgement to be influenced by purely political considerations. I could not imagine a case in which under the law, penalty had been more directly deserved.