How many movies have D. V. Narasa Raju and Rajanala Kaleswara Rao collaborated on?

They have worked on 5 movies together! Their first movie together was Sati Sulochana (Indrajeet) (1961) while their highest rated movie together was Ramu (1968). They have not worked together since Magaadu (1976). They are most known for their drama films together.