'Shuddh Desi Romance', produced by Yash Raj Films (YRF) hits the silver screen on Friday.
Sushant, who will play the popular detective, says a lot is to be done for his role in the film, which is based on one of the 33 crime thrillers written by renowned Bengali writer Sharadindu Bandopadhyay.
"I have taken leave for two to three months for 'Detective Byomkesh Bakshy' after the release of 'Shuddh Desi Romance'. A lot has to be done for the film like the look of the 1940s' hairstyle, body, accent ... but all after this film," Sushant told reporters at a radio station on Monday.
Directed by Maneesh Sharma, 'Shuddh Desi Romance' also stars Parineeti Chopra and newcomer Vaani Kapoor.