New Delhi: Diplomat Vikas Swarup, whose bestselling debut novel was turned into the Oscar-winning movie "Slumdog Millionaire", has been appointed as new foreign ministry spokesman.

Swarup will take over from spokesman Syed Akbaruddin who has held the post for last four years.

"He will be taking over in April after Akbaruddin's term comes to an end," a source said on Wednesday.

Swarup, an Indian Foreign Service officer, has served several stints overseas in Indian High Commissions, the most recent in Japan. Since returning to India in 2013, he has been attached to the Delhi office of the United Nations.

Swarup is known for penning internationally acclaimed "Q & A", published in 2005 about a young waiter who becomes the biggest winner in the history of a particular quiz show.

"Slumdog Millionaire", directed by Britain's Danny Boyle and which won eight Oscars in 2009, is based on the book.

In a 2009 interview, Swarup said he would like people to call him "a diplomat who writes".