How many movies have Mada Venkateswara Rao and Nandamuri Balakrishna acted in together?

They have worked on 2 movies together! Their first movie together was Thathamma Kala (1974) while their highest rated movie together was Srimadhvirata Parvamu (1979). They have not worked together since Srimadhvirata Parvamu (1979).