How many movies have Kotagiri Venkateswara Rao and Raghu Babu collaborated on?

They have worked on 18 movies together! Their first movie together was Vikramarkudu (2006) while their highest rated movie together was Induvadana (2022). They have not worked together since Ranga Ranga Vaibhavanga (2022). They are most known for their comedy films together.