Khan will play the role of Laal Singh Chaddha, based on Tom Hanks's character in the 1994 multiple-award-winning US classic.

"I have always loved Forrest Gump as a script. It is a life-affirming story. It is a feel-good film. It is a film for the whole family," Khan told reporters in Mumbai on his 54th birthday.

Forrest Gump won six Oscars, including best picture, best director and best actor for Hanks.

The film was directed by Robert Zemeckis and was based on Winston Groom's 1986 novel of the same name.

It centers on the life of a dim-witted but kind man whose life mirrors key events in America in the 20th century.

Read also: Aamir Khan: Movies can connect different cultures

Khan, who last appeared in box office flop Thugs of Hindostan, said he would lose 20 kilograms (45 pounds) for the role.

"I have to be lean and slim," he explained, adding that shooting would start in October.

Hollywood blockbusters have long inspired the Mumbai-based Hindi film industry.

Action-thriller Kaante (2002) was influenced by Quentin Tarantino's Reservoir Dogs while Sarkar (2005) was likened to The Godfather and Chachi 420 was similar to Mrs Doubtfire, although they weren't official remakes.

Khan's adaptation of Forrest Gump is expected to hit screens next year. Khan said the rights to the movie were bought from Paramount.

An official remake of 2014 Hollywood film The Fault in Our Stars is also in the works.