Karan Johar’s period drama Kalank’s teaser is out. Kalank teaser release by Karan Johar's period drama stars Varun Dhawan, Alia Bhatt, Aditya Roy Kapur, Sonakshi Sinha, Sanjay Dutt and Madhuri Dixit in pivotal roles. Directed by Abhishek Varman, the film will release on April 17. Here's what celebrities and fans are saying about the film's teaser. The film which gave the fans a sneak peek into the big-budget drama.