जब दीप जले आना, जब शाम ढले आना

In a recent Indian Idol show, one of the contestants, Devinder Singh, evoked a standing ovation from Padma Vibhushan Pandit Jasraj, after rendering this song. It seems that this episode of Indian Idol focused on songs based on classical ragas.

Although I don't quite know the context of the song in the movie story, it is obvious that the lovers are certainly reminiscing about their early days of courtship.