How many movies have Panchu Arunachalam and S. P. Muthuraman collaborated on?

They have worked on 25 movies together! Their first movie together was Thunive Thunai (1976) while their highest rated movie together was Aarilirunthu Arubathu Varai (1979). They have not worked together since Thottil Kuzhandhai (1995). They are most known for their drama films together.