Rajiv Gandhi was an Indian politician who served as the 6th Prime Minister of India from 1984 to 1989. He took office after the assassination of his mother, then–prime minister Indira Gandhi, to become at the age of 40 the youngest Indian prime minister. He served until his defeat at the 1989 election, and then became Leader of the Opposition, Lok Sabha, resigning in December 1990, six months before his own assassination.

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.