How many movies have Farah Khan and Mohammed Kasam Sayyad collaborated on?

They have worked on 4 movies together! Their first movie together was Dil To Pagal Hai (1997) while their highest rated movie together was Kuch Kuch Hota Hai (1998). They have not worked together since Kal Ho Naa Ho (2003). They are most known for their romance films together.