Complex sentence: She was killed by two of her bodyguards, Satwant Singh and Beant Singh, in the aftermath of Operation Blue Star, the Indian Army's June 1984 assault on the Golden Temple in Amritsar which left the Sikh temple heavily damaged.
Split into simpler sentences: She was killed by two of her bodyguards, Satwant Singh and Beant Singh. In the aftermath of Operation Blue Star, the Indian Army's June 1984 assault on the Golden Temple in Amritsar left the Sikh temple heavily damaged.