The bomb-disposal unit officer instructing 'Chirayu,' the character disarming the bomb, is played by an assistant director on the team, who had to run back to work once the scene was over.
This scene is inspired by a real incident where a bomb-disposal unit member was given a torn Explosive Ordnance Disposal (EOD) suit, popularly known as a bomb/blast suit, while on duty.
The hospital scenes were shot in a real location. Utmost care was taken by the cast and crew to ensure the patients and hospital staff were not disturbed in any way.
The last part of the 'Call Center' scene was improvised by Sharib Hashmi and was not written into the original script.
This scene is inspired by the Paris attacks of 13-11-2015 where the suspects allegedly used a gaming console to communicate.