Bangistan

Bangistan is a 2015 Indian black comedy satirical film directed by Karan Anshuman, produced by Farhan Akhtar and Ritesh Sidhwani, and starring Riteish Deshmukh and Pulkit Samrat, with Arya Babbar, Tomasz Karolak and Chandan Roy Sanyal in supporting roles. Jacqueline Fernandez appeared in a cameo. In the film, Hafeez and Praveen, two brainwashed terrorists from conflicting religions, plan to perform a suicide attack at a religious conference in Poland. However, a turn of events saw them change their minds.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.