Producer Sohail Maklai got into legal trouble, when Twentieth Century Fox studios sued him for unauthorized remaking of their 2002 film Phone Booth.
This remains the only film Irrfan Khan and Sanjay Dutt worked together.
Sanjay Dutt recreated the role originally played by Kiefer Sutherland in original version, with the exception Dutt had a major role comparing to Sutherland who had a very minor role.
The role of Kangna Ranaut was not included in original American version (Phone Booth).
Vicky Kaushal auditioned for the film but lost the role to Apoorva Lakhia.