It's good to hear Adnan Sami's voice after quite some time in "O re khuda", which has elements of Sufi music. Javed Bashir supports Sami nicely in the vocals department and the chorus is good. But the track still falls flat, primarily due to its run-of-the-mill composition.
Next up is a desi heavy metal track "Rab ka junoon" which has some very dominant guitar riffs and drum beats. Inderjeet Singh's vocals are powerful, but one fails to understand the use of Sufi lyrics for a pure rock track. However, heavy metal in a Bollywood film is not everybody's cup of tea, so one should tread the line with utmost caution!