At the trailer launch of Dhadak 2, Karan Johar reveals how he has managed to look young at the age of 53 by sharing some of his special fitness tips! The filmmaker also reacts on some internet trolls which made fun of his weight loss journey. #dhadak2 #karanjohar #karanjohardiet #karanjoharweightloss #triptiidimri #siddhantchaturvedi