Amritsar: India today marks the 100th anniversary of the Jallianwala Bagh massacre, one of the worst atrocities of British colonial rule for which London has yet to apologise. Congress president Rahul Gandhi, who reached Amritsar last night, paid his tribute to those who lost their lives and laid a wreath at the memorial this morning.British High Commissioner to India Dominic Asquith, who too paid his tribute, called the Jallianwala Bagh massacre a "shameful act in British-Indian history". "The events of Jallianwala Bagh 100 years ago today reflects a shameful act in British-Indian history. We deeply regret what happened and the suffering caused. I am pleased today that the UK and India have and remain committed to developing further a thriving 21st century partnership," Asquith said.