Mumbai, Jan 03 (ANI): Moviemakers of 'Chhapaak' released the title track 'Nok Jhok' in Mumbai. Song is sung by Shankar Ehsaan Loy. Directed by Meghna Gulzar, the movie is slated to hit the theatres on January 10, 2020. Co-stars, Vikrant Massey and Deepika Padukone were present during the launch event. Director Meghna Gulzar with Lakshmi Agarwal were also in attendance.