British India / independence movements. Jallianwalla Bagh massacre or massacre of Amritsar (massacre of nonviolent demonstrators for the independence of India by British soldiers and Gurkhas, under the command of Brigadier General Reginald Dyer on April 13, 1919 in Amritsar, Punjab). Building in the Jallianwalla-Bagh garden in Amritsar. Photo after 1919.