Ranbir Kapoor is one of Bollywood’s most popular actors. Karan Johar shares a special bond with Ranbir and wished him happy birthday on Instagram. The Yeh Jaawani Hai Deewani actor will next appear in Animal and Rocky Aur Rani Ki Kahani. Karan Johar, who shares a special bond with Ranbir, took to his Instagram story and penned a heartfelt wish