How many movies have Nagarjuna Akkineni and Surendra Yarlagadda collaborated on?

They have worked on 5 movies together! Their first movie together was Collector Gari Abbai (1987) while their highest rated movie together was Prema Katha (1999). They have not worked together since Exploring ''Shiva'' Movie After 25 Years (2014). They are most known for their action films together.