Great question — answering as the UphillTech team:
In a Reuters interview , the director Sriram Raghavan was asked about the film's background: Q: What is “Badlapur” based on? A: Basically it is an account written by a person (author Massimo Carlotto) who spent a lot of time in jail. He’s written quite a few stories, but many of his stories are actually about people he met in prison. The account he wrote is true but it happened elsewhere in the world. But some stories are universal, and I felt that this was a revenge story with a difference. So although in interviews Raghaven frequently refers to his movie being based on real-life events, it appears he means based on the novel, which itself was supposedly based on real-life events. The...
Full answer by Andrew Martin: https://movies.stackexchange.com/a/47015 (CC BY-SA 3.0).
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