How many movies have Lata Mangeshkar and Vatsala Deshmukh collaborated on?

They have worked on 3 movies together! Their first movie together was Jal Bin Machhli Nritya Bin Bijli (1971) while their highest rated movie together was Suhaag (1979). They have not worked together since Suhaag (1979). They are most known for their drama films together.