'Mera Rang De Basanti Chola' is a poem by late Ram Prasad Bismil, which has been used in all the Bhagat Singh movies till date in some form or the other. I've composed it in my style, also included few lines of the songs aye watan tere liye as it was fitting perfectly in the intro, hard to resist the temptation of not using it! :)

Initially I was just trying to cover mera rang de basanti chola from the movie The Legend Of Bhagat Singh, composed by AR Rahman, and sung by Sonu Nigam, but ended up creating a new version of my own.
Hope you like this tribute to Shahid Bhagat Singh.

Mera Karma Tu Mera Dharma Tu
Tera Sab Kuch Main Mera Sab Kuch Tu
(The above two lines have been taken from the song aye watan tere liye - Movie - KARMA)
hoooo...3.