In the poster, both the actors are dressed as terrorists with explosives wrapped around their bodies.
Riteish, 35 and the 30-year-old 'Fukrey' star play two dim-witted terrorists with the target of changing the world in the film. It also stars Jacqueline Fernandez.
"BOOM!!!!!! That's the first look of @Bangistan," Riteish posted on Twitter.
Directed by filmmaker Karan Anshuman, the film is produced by Farhan Akhtar's Excel Entertainment and Junglee Pictures.
"Bangistan. One of the funniest scripts I've ever read. Delighted to be producing it. All the best team," Farhan tweeted.
The film is set to release on April 17, 2015.