Music director Pritam Chakraborty came to Mumbai in 1997 from Kolkata. At that time he had no place to stay and no work. But his talent and determination made his dream comes true. Finally he reached the peak of glory with 'Dhoom' in 2004. He reveals, "It feels like a dream and it can happen only in Bollywood. I'm amazed by the turnaround in my life post Dhoom. And to top it all, the Dhoom music not only became a chartbuster in India, but also was No.1 for a week on Japan's national network! And the ring tones had among the highest downloads."