On 23 June 1985 it was operated using Boeing 747-237B registered VT-EFO. It disintegrated in midair en route from Montreal to London, at an altitude of 31,000 feet (9,400 m) over the Atlantic Ocean, as a result of the explosion from a bomb planted by Canadian Sikh extremists known as khalistanis. https://en.wikipedia.org/wiki/Air_In...%20khalistanis.
'I never thought I'd be terrorised by my fellow Sikhs at a wedding'
When interfaith marriages take place, UK temples now often hire security guards to protect weddings from demonstrators https://www.theguardian.com/world/20...s-at-a-wedding