A source close to Randeep Hooda informed that weeks before the he started shooting for the movie, the method actor chained himself with heavy handcuffs weighing approximately 2.5kgs each to get into the feel of a prisoner. It is well known that Sarbjit was trapped in a Pakistan jail for years but not many are aware that the innocent farmer had a heartlessly treatment. To understand Sarbjit's pain, Randeep also made a dummy jail in an area of just 6x4 feet where he spent his entire day, fully chained with minimum supply of food intake.In spite of great irritation and pain, the actor didn't give up in his self-made training and went beyond his limits to get the realistic performance on screen.
Talking about it, the director Omung Kumar said, "Randeep Hooda has given immense dedication and hard work to his character. While he is well known for his method acting but I believe Randeep has given his entire heart and soul for Sarbjit. The level of dedication needs immense acknowledgment and it would be visible to others too once the movie releases.