The actor, who will be teaming with Sooraj Barjatya after almost 15 years, will be seen playing the characters of Prem and Vijay in the film.
In his earlier three films with Barjatya - 'Maine Pyar Kiya', 'Hum Aapke Hain Kaun', 'Hum Saath-Saath Hain' - Salman Khan's on-screen name was 'Prem'.
"Salman Khan will be playing double role in the film. We have had Dilip Kumar play double role in 'Ram Aur Shyam', Salman in 'Judwa', both the characters were positive. There will be difference between the two characters but none of them is negative, both the roles are positive. He will be playing entertaining characters," a source said, without divulging any details.
The film will have Sonam Kapoor opposite Salman Khan. The two are coming together again after 'Saawariya'.
"Neil Nitin Mukesh will be playing Salman Khan's brother, Swara Bhaskar his sister and Deepak Dobriyal will be his friend. Sanjay Mishra and Anupam Kher too will be seen in the film in interesting roles," the source said.
The film's music will be composed by Himesh Reshammiya.
The shooting will start from June this year and the film is set for Diwali 2015 release.