Composer A.R. Rahman's music forms the backdrop for this film by Ashutosh Gowariker. Mohan Bhargava (Shah Rukh Khan), an Americanized NASA scientist, returns to his native India on a business trip and takes the opportunity to get back in touch with his roots by finding the nanny who helped raise him. His mission forces him to examine his ways and all the changes he's been through while pursuing what he defines as success.