O Riya - Full Song - Hero 420 - Bengali Movie - Valentine Day Release - Om - Nusrat - Riya Sen br br br Song: O Riya br Singer: Shadaab Hashmi br Lyricist: Riddhi br Music Director: Savvy br br Film : Hero 420 br br Starring: Om | Nusrat Faria | Riya Sen br Directed by: Sujit Mondol br Presenter: Ashok Dhanuka & Himanshu Dhanuka br Produced and Distributed by: Eskay Movies br Music Director: ‎Savvy br DOP : Iswar Barik br Editor: Somnath Day br DI: Prasad Productions Pvt Ltd br Colourist: P V Manikumar br Post Production: Eskay Digilab