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A: It may be a lost or misnamed story. Check Bengali detective forums like Bengali Ebooks or Suspense Group . Alternatively, read Chorabali or Rakter Daag – they have similar "fort" or "mansion" mystery vibes.
The story, based on Saradindu Bandyopadhyay’s 1952 novel, follows Byomkesh and his friend Ajit (played by ) as they travel to a remote fort in Madhya Pradesh.