On Sunday, 13th April 1919, Dyer, persuaded a significant insurgence could occur and restricted all gatherings. This notification was not generally scattered, and numerous townspeople accumulated in the Bagh to commend the significant Hindu and Sikh celebration of Baisakhi, and peacefully protest the capture and removal of two leaders, Satyapal and Saifuddin Kitchlew. Dyer and his soldiers entered the bagh, obstructing the primary passage behind them, took up position on a raised bank, and with no notice started shooting at the group for around ten minutes, coordinating their projectiles generally towards the couple of open entryways through which individuals were attempting to escape, until the ammo supply was practically depleted. The next day Dyer expressed in a report that “I have heard that somewhere in the range of 200 and 300 of the group were killed. My gathering terminated 1,650 rounds”.

The Hunter Commission report distributed the next year by the Government of India condemned both Dyer actually and furthermore the Government of the Punjab for neglecting to calculate a loss tally, and cited a figure offered by the Sewa Samati (a Social Services Society) of 379 recognized dead, and around 1,200 injured, of whom 192 were seriously injured. The loss number assessed by the Indian National Congress was more than 1,500 harmed, with around 1,000 dead.

Dyer was praised for his activities by some in Britain, and for sure turned into a saint among large numbers of the individuals who were straightforwardly profiting by the British Raj in India, like individuals from the House of Lords. He was, in any case, broadly reviled and scrutinized in the House of Commons, whose July 1920 board of examination reprimanded him. Since he was an officer following up on orders, he could not be tried for murder. The military decided not to bring him under the watchful eye of a court-martial, and his only punishment was to be eliminated from his present post and was turned down from a promotion, and banned from additional work in India. Dyer along these lines resigned from the military and moved to England, where he died in 1927 without facing any consequences for his brutal and inhumane actions.