An Indian general was followed before his throat was slashed with a knife in London.
The Southwark Crown Court has heard that Lieutenant-General Kuldeep Singh Brar needed surgery after the attack on 30 September.
According to the BBC, prosecutor Annabel Darlow said that the78-year-old was deliberately attacked because of his role in the Indian army's attack on the Golden Temple in Amritsar in 1984.
Brar was on a holiday with his wife Meena in London and the couple was walking back to their hotel when he was attacked in an ambush by a gang of four men.
The jury heard that when the defendants found that Lt Gen Brar was in London they made two reconnaissance missions over two days to check out his movements, the report said.
As the attackers fled, one of them dropped his mobile phone giving police important clues about the attackers.
The court heard that Brar has survived several assassination attempts and still receives death threats, as the military operation 'has not been forgotten'.