Doval retired as Intelligence Bureau chief in January 2005 after the Cogress-led UPA government delayed implementing a two-year term for the post.
As an IB officer, the 1968-batch Kerala cadre officer had stints as an undercover agent in Pakistan and the UK.
In 1988, he received the second highest gallantry award — the Kirti Chakra (second only to the Paramvir Chakra) and earned the distinction of being the first police officer to get it. Kirti Chakra till then was reserved only for military honours.
The 74-year-old led the team that negotiated with the hijackers of the IC 814 flight in Kandahar in December 1999.
In the past, he worked closely with Indira Gandhi, Rajiv Gandhi and several home ministers, including LK Advani.
Doval played a key role in convincing UAE authorities to extradite Christian Michel.
He had been blamed by the Opposition for the intelligence failure that led to the Pulwama attack in february this year.