How many movies have Raj Baldev Raj and Vinod Mehra collaborated on?

They have worked on 3 movies together! Their first movie together was Swarg Narak (1978) while their highest rated movie together was Yeh Rishta Na Tootay (1981). They have not worked together since Yeh Rishta Na Tootay (1981). They are most known for their drama films together.