How many movies have Major Sundarrajan and T. K. S. Natarajan acted in together?

They have worked on 6 movies together! Their first movie together was Akka Thangai (1969) while their highest rated movie together was Aadu Puli Attam (1977). They have not worked together since Kadamai Kanniyam Kattupaadu (1987). They are most known for their drama films together.