How many movies have N. P. Suresh and Prem Nazir collaborated on?

They have worked on 5 movies together! Their first movie together was Thakilu Kottampuram (1981) while their highest rated movie together was Sree Ayyappanum Vavarum (1982). They have not worked together since Ozhivukalam (1985). They are most known for their drama films together.