The music for the movie was composed by Mainak Nag. The soundtrack features a range of soulful and melodious songs that capture the essence of the film.

In the forest, the brother befriends a European soldier ( Tómas Lemarquis ). This "soldier" guards a mysterious border, adding to the film’s atmosphere of absurdity and political metaphor. Key Cast & Crew

Unlike glossy urban dramas, Chatrak was shot entirely in real slums and under-construction bridges in Kolkata . Cinematographer Kamrul Hasan Khosru used natural lighting and handheld cameras to give the film a raw, documentary-like texture. The gray concrete landscape contrasts sharply with the organic, almost alien, growth of mushrooms.