How many movies have Rajender Krishan and Rajendranath Malhotra collaborated on?

They have worked on 2 movies together! Their first movie together was Neend Hamari Khwab Tumhare (1966) while their highest rated movie together was Ek Shriman Ek Shrimati (1969). They have not worked together since Ek Shriman Ek Shrimati (1969).