The assassination was carried out as revenge for Mrs Gandhi ordering the killing of Sikh separatists at the Golden Temple in Amritsar.

BBC: 1984 India riots: Congress leader Jagdish Tytler probed

In 1984 Prime Minister Indira Gandhi was gunned down by her Sikh bodyguards after ordering troops to flush out Sikh militants from the Golden Temple in Amritsar.

BBC: India profile

When Sikh extremists used violence to demand an independent state in Punjab, she ordered an army attack on their refuge, the holiest Sikh shrine, the Golden Temple in Amritsar.

BBC: Indira Gandhi 'greatest woman'

For months militant Sikhs had been gathering in the complex of their holiest shrine, the 17th-century Golden Temple at Amritsar in India's northwest, as their campaign for greater autonomy for their Punjab homeland intensified.

CNN: Looking Back

Krishna, talked in January of lodging a formal complaint over a quip by Jay Leno, an American talk-show host, who said the Sikhs' revered Golden Temple in Amritsar was in fact Mitt Romney's holiday home.

ECONOMIST: A great institution shows a less attractive side

According to the AFP news agency, McDonald's will open the outlet in the middle of next year, near the Golden Temple in the Sikh holy city of Amritsar in northern India.

BBC: McDonald's opens vegetarian-only restaurant

Bhindranwale built a fortress at the Golden Temple, the Sikhs' holiest shrine in the Punjab city of Amritsar, and was killed in June 1984 when Indira Gandhi, then prime minister, sent troops to oust him.

ECONOMIST: A martyr is declared in Punjab