How many movies have Prithviraj Kapoor and Raj Kapoor acted in together?

They have worked on 6 movies together! Their first movie together was Inquilab (1935) while their highest rated movie together was Kal Aaj Aur Kal (1971). They have not worked together since Kal Aaj Aur Kal (1971). They are most known for their drama films together.