Checkout the theatrical trailer of ‘Courier Boy Kalyan‘ starring Nithin and Yami Gautam in lead produced by Gautam Menon. The suspense thriller is being directed by debutante director Prem Sai. Karthik and Anoop Rubens are composing the music for the film. The much delayed project is expected to hit the screen in the month of September. Stay tuned for more updates.