How many movies have Aamir Khan and Udit Narayan collaborated on?

They have worked on 9 movies together! Their first movie together was Qayamat Se Qayamat Tak (1988) while their highest rated movie together was Lagaan: Once Upon a Time in India (2001). They have not worked together since Bombay Talkies (2013). They are most known for their drama films together.