How many movies have Ilaiyaraaja and R. Sundarrajan collaborated on?

They have worked on 30 movies together! Their first movie together was Payanangal Mudivathillai (1982) while their highest rated movie together was Mella Thirandhadhu Kadhavu (1986). They have not worked together since Chithirayil Nilachoru (2013). They are most known for their drama films together.