How many movies have Kottayam Santha and Thikkurissy Sukumaran Nair acted in together?

They have worked on 4 movies together! Their first movie together was Anweshichu Kandethiyilla (1967) while their highest rated movie together was Madanolsavam (1978). They have not worked together since Madanolsavam (1978). They are most known for their drama films together.