How many movies have Kaikala Satyanarayana and Pendyala Nageswara Rao collaborated on?

They have worked on 4 movies together! Their first movie together was Paruvu-Prathishtta (1963) while their highest rated movie together was Daana Veera Soora Karna (1977). They have not worked together since Sri Rama Pattabhishekam (1978). They are most known for their drama films together.