As heartthrob Varun Dhawan turns 30 today, his mentor Karan Johar has a special message for the actor. The 'Ae Dil Hai Mushkil' director took to his Twitter handle to bless the 'Badlapur' star and wrote, "Happy birthday @Varun_dvn .... big love to you and bless you always!!! Have a super year...." Karan also shared an adorable picture of the two where he is seen kissing Varun. Varun Dhawan, who has carved a niche for himself with films like 'Humpty Sharma Ki Dulhania', 'Badrinath Ki Dulhania' and 'Dishoom' made his acting debut with Johar's 2012 romantic comedy 'Student of the Year'. On the work front, Varun is busy shooting for his upcoming film 'Judwaa 2'.