How many movies have Hariharan and Sowmya Raoh collaborated on?

They have worked on 3 movies together! Their first movie together was Dil Se.. (1998) while their highest rated movie together was Vettaiyaadu Vilaiyaadu (2006). They have not worked together since Vettaiyaadu Vilaiyaadu (2006). They are most known for their romance films together.