How many movies have Ilaiyaraaja and Usilaimani collaborated on?

They have worked on 13 movies together! Their first movie together was Anbukku Naan Adimai (1980) while their highest rated movie together was Aan Paavam (1985). They have not worked together since Paandi Naattu Thangam (1989). They are most known for their drama films together.