How many movies have R. Selvaraj and Radhika Sarathkumar collaborated on?

They have worked on 4 movies together! Their first movie together was Kizhakke Pogum Rail (1978) while their highest rated movie together was Kadalora Kavithaigal (1986). They have not worked together since Taj Mahal (1999). They are most known for their drama films together.