Khalistan Movement
In June 1984, Operation Blue Star, an Indian military operation was ordered by Prime Minister Indira Gandhi, to remove pro-Khalistan militant religious leader Jarnail Singh Bhindranwale and his armed followers from the Golden Temple in Amritsar, Punjab.. On 31 October 1984, Indira Gandhi was assassinated in New Delhi by her two Sikh security guards in retaliation for Operation Blue Star. The assassination triggered the 1984 anti-Sikh riots in New Delhi, in which large number of Sikhs were killed. In June 1985, Air India Flight 182, which was operating from Montréal, Canada was bombed in route to London over the Atlantic Ocean, as a result of explosives planted by pro-Khalistan Sikh militants; and all on-board passengers were killed.