The film was based on the character of Byomkesh Bakshy created by the Bengali writer Saradindu Bandyopadhyay. Saradindu wrote several stories featuring this character in the period between 1932 and 1970. Some of these stories inspired the film's plot. Yash Raj Films bought the rights for 31 Byomkesh Bakshy books in all languages except Bengali. The rights for the Bengali books were consciously excluded as a mark of respect for what they meant to the Bengali people.[1]
The film's story was set in the Kolkata of the 1940s. VFX was used extensively to re-create this time period.[2]
The film gave a modern treatment to a dated story. Dibakar Banerjee extended this concept to the film's music with contemporary sounds and genres. Banerjee's team shortlisted 200 songs from indie musicians before finalising the tracks for the soundtrack.[3]
Song
Calcutta Kiss (Do You Know What Time It Is) - Madboy/Mink adapted their own "Taste The Kiss" for this song.[4]
Byomkesh In Love - This song was an adaptation of the track "Fog + Strobe" from "Hexes + Drama & other reasons for evacuation" (2012), the debut album of the indie band Blek. The song combined a portion of "Fog + Strobe" with newly recorded Hindustani classical vocals by Usri Banerjee.[5]
Jaanam - This song was the Hindi adaptation of the song "Pariquel" from "Sinema" (2011), the debut album of the Indian indie band Peter Cat Recording Co.[6]
Chase In Chinatown - This song was a mashup of the songs "Andova.A" and "Chick.N" by the band Mode.AKA.[7]
Life's A Bitch - This song was taken from the album "Hotbox" (2007) by the band Joint Family.
