How many movies have Y. G. Mahendran and Y. G. Parthasarathy acted in together?

They have worked on 4 movies together! Their first movie together was Manmadha Leelai (1976) while their highest rated movie together was Paayum Puli (1983). They have not worked together since Paayum Puli (1983). They are most known for their romance films together.