The makers of the film have decided to cast Taapsee Pannu in the film with her learning and training in mixed martial arts and Aikido along with continuing to train in Krav Maga for the film.
The first spin off film in Hindi cinema.
For the preparation of the role of Pannu's character as a spy, producer Neeraj Pandey took guidance from full time consultant, an ex-intelligence officer.
Akshay Kumar,Danny Denzongpa,Anupam Kher and Murli Sharma and Madhurima Tuli. reprise their roles from Baby 2015
The film is set in 2011.