In India, Mahatma Gandhi, Indira Gandhi and her son RajivGandhi were all assassinated in separate incidents. (Indira Gandhi was killed by her own bodyguards.) Suicide bombers in Sri Lanka have killed several leaders there.
The inquiry said there was "absolutely no evidence" suggesting that Mrs Gandhi's son, former prime minister RajivGandhi, or "any other high ranking Congress leader had suggested or organised attacks on Sikhs".