Complex sentence: Satwant Singh (son of Tarlok Singh, of Agwan village in Gurdaspur District) and Beant Singh were bodyguards to the Prime Minister of India Indira Gandhi, who on 31 October 1984 assassinated her at her residence.
Split into simpler sentences: Satwant Singh (son of Tarlok Singh, of Agwan village in Gurdaspur District) and Beant Singh were bodyguards to the former Indian Prime Minister Indira Gandhi. On 31 October 1984 they assassinated Indira Gandhi, the Prime Minister of India at her residence.