How many movies have Jagathy Sreekumar and P. K. Reghukumar collaborated on?

They have worked on 6 movies together! Their first movie together was Nathi Muthal Nathi Vare (1983) while their highest rated movie together was Aram + Aram = Kinnaram (1985). They have not worked together since Kottum Kuravayum (1987).