Set in the Kolkata of 1940s, the film revolves around the character as he embarks on his very first case during the World War II.
"I was shooting for 'Shuddh Desi Romance' when I got a call for this role. I was very fascinated by the idea and the fact that it was set in the 1940s Kolkata which was buzzing with so many activities. I got to know about these things only after talking to Dibakar and reading the script. I would say it is the most honest portrayal of my career," Sushant told PTI.
The 29-year-old actor said they have given their best to the film, which is based on the stories of Bengali author Sharadindu Bandyopadhyay.
"Normally, what happens is that you work with one good idea but there were so many right ideas for this movie.
Everything was so organic. It was planned and not planned at the same time. We were always open to new suggestions though we knew the central idea and set our standard accordingly."
There is a strong feeling that Dibakar, who has bought the rights to all the Byomkesh stories, may return with other versions and Sushant said he is open to revive his character.
"There is a possibility. Me and Dibakar have discussed the second film and he has some ideas but movies are commercial ventures and a lot would depend on how this film performs.
"This film is about what happened to Byomkesh before he became the Byomkesh that we know now. Obviously, playing Byomkesh a second time would be exciting."
