During the 1857 First War of Indian Independence from British colonialism, several Indian soldiers revolted against the British Army. Around 500 revolted at Mian Mir Cantonment in Lahore. They swam across the Ravi river to reach Ajnala town of Amritsar. Of them, 218 were killed by British soldiers at Dadian Sofian village near Ajnala.
157 years later, on 28 Feb 2014, the remains of 22 of them were dug out from a well where their bodies were dumped. The remaining 282 were stuffed in a small room, where many died of asphyxiation, the rest were shot dead and their bodies were thrown into a well. This was later named 'Kalianwala Khu' and "Shaheedan da Khu". The present world came to learn of this after it was reported in major newspapers. On further digging on 1 March 2014, 40 more bodies were recovered.