When Manya and Munir goes to Zubair's location for work, Zubair is seen smoking cigarettes during Ramadan. However during Ramadan, it is believed that any kind of intake is forbidden.
In the song Ala Re Ala John Abraham is given Amitabh Bachchan's look from Hum 1991 a she was fan of Amitabh Bachchan.But the film had released 10 years after his death.
The police Jeep siren in 70s was a wailing type, however when Anil Kapoor drives it to school the siren heard is the latest one.
In one scene Vidya is shown dialing number 100 and connects directly to Inspector Baagraan. However, number 100 is police control room number.
John is shown wearing Rupa Frontline Banyan which wasn't there in the 80s.
In the final shootout, policemen are armed with 6-shot revolvers. No one is seen reloading and more than six shots are fired.
When Manya Surve is introduced to Gyancho (sharpshooter) at the gym, Manya starts taunting him. In one close-up shot, you can see brand name on Manya's vest: Rupa Frontline. This brand first came in market near about in 2010. The movie is set in 1982.
Film shows rivalry between Dawood Ibrahim and Manya Surve in reality they never came opposite each other which was based on a fictional plot.
In reality Manya Surve never spotted a mustache.