The gritty, pulsating score was composed by Ram Sampath with lyrics by Varun Grover .
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, financing became a challenge. Kashyap and co-writer Vasan Bala pivoted, reimagining the story in modern-day Mumbai using "guerrilla filmmaking" techniques to shoot in real locations, including slums and crowded airport areas. Narrative Structure and Themes Raman Raghav 2.0 Filmyzilla.com