A 1986 IFS-batch officer, Swarup will succeed Syed Akbaruddin, who has been promoted as Additional Secretary in the External Affairs Ministry and will also be the Chief Coordinator for the India Africa Summit in October.
Swarup is the author of internationally acclaimed novel "Q & A" which was made into "Slumdog Millionaire", which won eight Academy Awards in 2009, including Best Picture, Best Director, and Best Adapted Screenplay.
He is currently holding the charge of Joint Secretary (United Nations- Political) in the External Affairs Ministry will take over on April 18, officials said.