Actor Anupam Kher who plays a vital role in this movie also played role of a con artist in another movie Khel (1992), which has a sequence that is based on the 1987 Zaveri Bazaar con job, the same incident that inspired this film.
Because of film's buzz before release, CBI officially requested the producers to carry the message 'Beware of Fake CBI' in all the film's promotional material.
Mobile phones were not allowed on the sets to ensure that all actors lived 1980s style. This was director Neeraj Pandey's idea
Ajay Devgn & Abhishek Bachchan were reported to have been considered for the lead role. However it went to Akshay Kumar as he was Director's first choice.
Divya Dutta has one dialogue in the entire film which she repeats thrice.