The Jallianwala Bagh massacre (also known as the Amritsar massacre), takes place in the Jallianwala Bagh public garden in the northern Indian city of Amritsar on April 13, 1919.

The shooting that takes place is ordered by Brigadier-General Reginald E.H. Dyer.On Sunday, April 13, 1919, Dyer is convinced of a major insurrection and thus he bans all meetings.

On hearing that a meeting of 15,000 to 20,000 people including women, children and the elderly has assembled at Jallianwala Bagh, Dyer goes with fifty Gurkha riflemen to a raised bank and orders them to shoot at the crowd.

Dyer continues the firing for about ten minutes, until the ammunition supply is almost exhausted; Dyer states that 1,650 rounds had been fired, a number which seems to have been derived by counting empty cartridge cases picked up by the troops.

Official British Indian sources give a figure of 379 identified dead, with approximately 1,100 wounded.

The casualty number estimated by the Indian National Congress is more than 1,500, with approximately 1,000 dead.

Dyer is removed from duty and forced to retire by the House of Commons.

He becomes a celebrated hero in Britain among most of the people connected to the British Raj.

for example, the House of Lords, but unpopular in the House of Commons, that votes against Dyer twice.

The massacre causes a reevaluation of the army's role, in which the new policy becomes "minimum force", and the army is retrained and develops suitable tactics for crowd control.