Answer
The assassination of Rajiv Gandhi, the former Prime Minister of India, occurred during Chandra Shekhar's tenure as Prime Minister. On May 21, 1991, while campaigning for the Indian National Congress (INC) in Sriperumbudur, Tamil Nadu, Rajiv Gandhi was killed by a suicide bomber belonging to the Liberation Tigers of Tamil Eelam (LTTE), a separatist organization fighting for an independent Tamil state in Sri Lanka.