Let's hedge a bet. You've never heard of Rupa Biswas. It's great if you have. But if you haven't, it's understandable. In 1982, Biswas — now Sen after marriage — released an album called Disco Jazz. It might just be one of the best pre-Internet Indian records you've never heard. The reason is all down to unfortunate timing. Nazia Hassan had burst onto the scene around the same point with Disco Deewane — an album that captured the popular imagination with its "aha" factor — and with Aap Jaisa Koi, the runaway Hindi hit. Sen, then a middle-class Bengali girl in her mid-20s with no marketing backing to speak of, stood no chance. But let that not take away from the fact that she was responsible for a genuine work of art. There in fact isn't a single piece of recorded music in history that falls roughly under the bracket of disco, has an electric sarod as its sonic backbone, and has lyrics that comprise basic Bengali words. How did it all come about, though? Sitting resplendent in a silk saree at a Mahim record store called The Revolver Club, where she had come down earlier this week for a meet-and-greet session (we'll get to how the digital age helped her gain the recognition she deserved 40 years ago), Sen travels back in time to narrate her one-of-a-kind story to us.

Ustad Aashish Khan realised Sen's potential and arranged the record