For a unique experience, YouTube Music is fantastic. It not only has the official audio tracks but also the song's official music video. You can listen to the "Tum Mile" rock version in its raw, original format directly from the channel of the music label. YouTube Music's free tier is very generous, and its premium version eliminates ads and allows background play.
While the 2009 Tum Mile soundtrack is original work by Pritam, there have been historical discussions regarding an older song with a similar title, "Tum Mile Dil Khile" (from the movie Criminal ), which was noted for its similarities to Enigma's "Age of Loneliness". Experience the romantic title track from the film here: tum mile pagalfree better