Indian Prime Minister Indira Gandhi was assassinated at 9:30 a.m. on 31 October 1984 at her residence in Safdarjung Road, New Delhi. She was killed by her Sikh bodyguards, Satwant Singh and Beant Singh, in the aftermath of Operation Blue Star by Indian Army between 1 and 8 June 1984 on the orders of Gandhi. The military operation was to remove Sikh militant Jarnail Singh Bhindranwale and other Sikh separatists from the Golden Temple of Harmandir Sahib in Amritsar, Punjab, the holiest site of Sikhism. The military action resulted in the death of many pilgrims as well as damage to the Akal Takht and the destruction of the Sikh Reference Library.

The prime minister of India is the head of government of the Republic of India. Executive authority is vested in the prime minister and his chosen Council of Ministers, despite the president of India being the nominal head of the executive. The prime minister has to be a member of one of the houses of bicameral Parliament of India, alongside heading the respective house. The prime minister and their cabinet are at all times responsible to the Lok Sabha.