This piece is from Rang De Basanti. Rang De Basanti background score is one of the best of A.R.Rahman in the recent past. This piece is the main theme of the movie. It is a very simple and haunting Piano melody. It is used throughout the movie at many places, especially in the scenes where they show Sue's Grand Father in the past. The solo violin version comes when Aamir cries in Sue's room, after the rally for Madhavan. The orchestral version comes when Ram Prasad Bismil gets arrested by the police.