Filmmaker Dibakar Banerjee was enamoured by a 'mysterious quality' in Sushant Singh Rajput. He says that's the reason why he roped in the actor for the protagonist's role in 'Detective Byomkesh Bakshy!'.

"He was my first choice (for the film). When I discussed the film with Aditya Chopra, we thought of Sushant's name. We were clear that only Sushant can become Byomkesh as there is a mysterious quality about Sushant, which works well for this character. He keeps himself private," Dibaker said.