How many movies have Kottayam Santha and Madhu acted in together?

They have worked on 7 movies together! Their first movie together was Ninamanija Kalpadukal (1963) while their highest rated movie together was Bhargavi Nilayam (1964). They have not worked together since Aattuvanchi Ulanjappol (1984). They are most known for their drama films together.