How many movies have Allu Ramalingaiah and K Raghavendra Rao collaborated on?

They have worked on 15 movies together! Their first movie together was Driver Ramudu (1979) while their highest rated movie together was Jagadeka Veerudu Athiloka Sundari (1990). They have not worked together since Rowdy Alludu (1991). They are most known for their drama films together.