The song 'mere sapnon ki rani' was picturized in isolation, ie. the scene of Sharmila Tagore riding the train on one day and Rajesh Khanna another day. Both the reels were then professionally merged together.
I have also read 'A Night Train At Deoli[compulsory part of ISC curriculum], the deserted station[which functioned like a technical halt only]was the background where the narrator's infatuation was set.