The story is loosely based on real life story of Boota Singh.
It is a world record that 10 crore tickets of gadar were sold as compared to any other film in the world.
During the scene where Amisha Patil misses the train comedian Kapil Sharma was among the crowd.Kapil Sharma then a teenager managed to be part of the shoot as his father a cop was posted on duty on the shoot site for that particular day.
An "All-time Blockbuster", Gadar is widely regarded as one of the most successful films ever in the history of Hindi cinema and regularly mentioned in the same breath as record-breaking defining films such as Sholay, DDLJ, HAHK, Mother india, 3 Idiots, Mughel-e-azam & Bahubali 2.
Govinda had initially signed the film in October 1998. He had creative differences with Anil Sharma who he had made Maharaja with. Since Anil Sharma shared a great rapport with the Deols he asked Dharmendra to reach out to Sunny on his behalf. The rest is history.