The 1971 Bangladesh atrocities began as the Pakistan army launched Operation Searchlight on 25 March 1971 to suppress the Bengali uprising in the then East Pakistan. As a reaction, people from Dhaka flocked to Keraniganj on the other side of the river. The union Jinjira and nearby areas were inhabited by a large number of Hindu families. The elements of Pakistan army, now in control of Dhaka city after the crackdown of 25 March marked Jinjira and surrounding area as a target for military operation.
The army started to amass forces around Keraniganj from the midnight of 1 April. They took control of the Mitford Hospital by the river. At around 5 am they commenced the attack by throwing flares from the roof of the mosque adjacent to the hospital. The army moved into Jinjira and opened fire on people. The massacre continued for nearly nine hours. One of the largest such executions took place beside a pond near the Nandail Dak street where 60 people were lined up and shot. The soldiers also fired on the houses using gunpowder. More than a thousand people died in this massacre.
In the night of 2 April Pakistan Television broadcast news about strong military action against separatist miscreants taking shelter at Jinjira of Keraniganj on the other side of Buriganga. On 3 April The Morning News came up with the headline, "Actions taken against miscreants at Jinjira".