Directed by Vishal Bhardwaj, the film is slated to be released on January 11, 2013.
Imran and Anushka also entered the 'Bigg Boss' house to meet the inmates.
A wrestling match was organised between Imam and Rajev.
Imran Khan will be seen playing the role of a Haryanvi in the upcoming film.
The inmates not just met the stars this week, but were also made to interact with the media.
For the first time in the history of 'Bigg Boss', media was made to enter the premises and interact with the inmates.
Sapna Bhavnani, Imam Siddiqui and Niketan Madhok during the press conference.
The media asked Rajev Paul and Sana Khan about their closeness on the show.
The inmates clarified about many issues in the house during the press conference.
Imran Khan and Anushka Sharma came on the sets of 'Bigg Boss' to promote their upcoming film 'Matru Ki Bijlee Ka Mandola'.
Imran and Anushka joined the brigade of celebrities who have come on the sets of the reality show to promote their films.