Rana had told dna earlier that he has tried to model his character in this film on that of Denzel Washington’s in Crimson Tide. He was also thrilled about this particular film because he said it would be the first time a film is being made about the Indian Navy. "Everyone knows about the Pakistani submarine PNS Ghazi sinking off the Vishakapatnam coast in Indo-Pak war in 1971. But the files are classified and no one really knows the exact turn of events that took place between the Indian Navy and them. This movie is about that submarine and its untold story.