He adds, ''The idea is to ensure that no one else makes a film on Byomkesh till I am done with my franchise or series. If I don't do that, someone else will pick up another story from the series. So there will be multiple Byomkesh. It will ultimately be confusing and detrimental to my film and character's image in the public's eyes.''
At the same time, the makers are also planning to turn the stories into graphic novels. ''It's a dream that we are working on. Right now, I can only say that much,'' says the director.
Set in 1942, the film, starring Sushant Singh Rajput as Byomkesh, will show a war-torn Kolkata during the '40s as it follows the first adventure of Byomkesh, who is fresh out of college. The period thriller will hit theatres in December next year.