How many movies have Javed Khan and Kunal Uday Mehta collaborated on?

They have worked on 6 movies together! Their first movie together was Mujhse Dosti Karoge! (2002) while their highest rated movie together was Mujhse Shaadi Karogi (2004). They have not worked together since Nishabd (2007). They are most known for their romance films together.