Well known singer,actor and anchor Sonu Nigam has unveiled a song he composed in memory of the victims and heroes of the Mumbai terror attacks on November 26,a year ago. It’s a devastating stigma on our sovereignity, says Sonu.The number titled Ungli Uthe to, koi bare to,kardegi bagawat Mumbai, has been rendered by 15 singers like Shankar Mahadevan, Sunidhi Chauhan, Kunal Ganjawala,Kailash Kher,Roop Kumar Rathod and Hariharan.The song also features a few opening lines by Amitabh Bachchan.