I just love this comment by B.True on the Youtube website for this lovely song.
The 50-rupee note at 1:03 flips to the other side in the close-up shot that follows. But this is only a minor quibble in a brilliantly edited video and an amazing, original composition. This video makes me want to watch this movie even though it is an adaptation of what is at best a mediocre novel. Take a bow, Amit Trivedi!