How many movies have Bibhutibhushan Bandyopadhyay and Dulal Dutta collaborated on?

They have worked on 6 movies together! Their first movie together was Pather Panchali (1955) while their highest rated movie together was Apur Sansar (1959). They have not worked together since Sriman Prithviraj (1973). They are most known for their drama films together.