How many movies have K. V. Mahadevan and M. R. Radha collaborated on?

They have worked on 8 movies together! Their first movie together was Sabaash Mapillai (1961) while their highest rated movie together was Dharmam Thalai Kaakkum (1963). They have not worked together since Thozhilali (1964). They are most known for their drama films together.