How many movies have K. V. Mahadevan and S. D. Subbu Lakshmi collaborated on?

They have worked on 3 movies together! Their first movie together was Rajarajan (1957) while their highest rated movie together was Sampoorna Ramayanam (1958). They have not worked together since Padikkadha Medhai (1960). They are most known for their drama films together.