On Sunday, 13 April 1919, Dyer was convinced of a major insurrection and he banned all meetings; however this notice was not widely disseminated. That was the day of Baisakhi, the main Sikh festival, and many villagers had gathered in the Bagh. On hearing that a meeting had assembled at Jallianwala Bagh, Dyer went with fifty Gurka troops to a raised bank and ordered them to shoot at the crowd. Dyer continued the firing for about ten minutes, until the ammunition supply was almost exhausted. Dyer stated that 1,650 rounds had been fired, a number apparently derived by counting empty cartridge cases picked up by the troops. Official British Indian sources gave a figure of 379 identified dead, with approximately 1,100 wounded. The casualty number estimated by the Indian National Congress was more than 1,500 injured, with approximately 1,000 dead.