How many movies have Karan Johar and Parzaan Dastur collaborated on?

They have worked on 4 movies together! Their first movie together was Kuch Kuch Hota Hai (1998) while their highest rated movie together was Kabhi Khushi Kabhie Gham (2001). They have not worked together since Gori Tere Pyaar Mein (2013). They are most known for their romance films together.