How many movies have K. V. Mahadevan and T. S. Balaiah collaborated on?

They have worked on 7 movies together! Their first movie together was Thaikkupin Tharam (1956) while their highest rated movie together was Thillana Mohanambal (1968). They have not worked together since Vilaiyaattu Pillai (1970). They are most known for their drama films together.