How many movies have Ilaiyaraaja and Sowcar Janaki collaborated on?

They have worked on 12 movies together! Their first movie together was Pattaakathi Bairavan (1979) while their highest rated movie together was Pudhu Pudhu Arthangal (1989). They have not worked together since Yevade Subramanyam (2015). They are most known for their drama films together.