How many movies have M. N. Nambiar and R. M. Veerappan collaborated on?

They have worked on 5 movies together! Their first movie together was Nadodi Mannan (1958) while their highest rated movie together was Naan Aanaiyittal (1966). They have not worked together since Ulagam Sutrum Valiban (1973). They are most known for their drama films together.