Karan Johar turns 43 tomorrow (May 25). Buzz is that Alia Bhatt and Varun Dhawan, who now headline the cast of his production Shuddhi, are planning a party for their mentor.

He has already given them the biggest birthday treat by casting them in his ambitious venture and this could be their way of saying thank you.


The filmmaker is known for throwing lavish birthday bashes every year with the who's who of the industry in attendance.

This year should be no different, but Alia and Varun will sure make it extra special for him.