I love classical music. I love a lot of musicians playing together and the whole culture of that, whether it's Indian or it's Western.

When I initially read the script, it goes inside and comes out different things even without commenting on any stuff. And then, those pieces are taken out and then spread out through the movie.

There were basically three themes. One was the sun theme which is the guitar when he'd get sun on his leg and it comes again in the end. And there's of course the lullaby which Dido sang, "If I Rise." And then there's this driving guitar which is the motivation theme.

What is good is what it's going to lead to, like the song "Jai Ho." If good numbers are going to come in the future, it bodes well for a lot of things. But then, who's going to maintain that. That's the question. So far they could never lead to an Indian song, like a normal film song in this that they can relate to.

It's a very simple process. He [Danny Boyl] comes in the tube (subway) and then he sits with me for 3 hours every evening and then I work on something. Then later, if he likes something, I put it even more perfectly. I tweak stuff. So this happened for 3 or 4 weeks and the music was done.

Since I worked with Danny Boyle before on Slumdog Millionaire, we have great success and everything. So, when I first got the script and the screenplay of Simon (Beaufoy) and I was reading it, even before the shoot, some kind of sounds came into my mind and I put some stuff [down] and sent it to Danny when he was cutting the movie.

Because when you work with a different team, the expectations are different and then you deliver in a very different way. You look back at it and you're proud of yourself. And when the same people come in and you do the same thing, it's boring. You could re-envision it again and again but when the new chemistry of ideas comes in, something happens as a team.