Karan Johar, Alia Bhatt and Varun Dhawan on 'Koffee With Karan'. Pic/Star World India Twitter account

Bollywood actors and 'Badrinath Ki Dulhaniya' co-stars Varun Dhawan and Alia Bhatt will grace the couch on the next episode of 'Koffee With Karan'. Going by the teaser released online, the episode promises to be a laugh riot!