"Sonu Nigam had asked me to participate in a song that he was doing for those whom we lost that fateful day. I did, " Amitabh wrote on his blog.
"Many different singers from our trade had participated in it to lend it a spirit of togetherness and strength, of faith in our independence, and the love for those that became ours in defending our freedom. I am joyed by the effort and give voice to it, " he added.
Amitabh is also expected to be part of a day-long commemoration on the first anniversary of the 26/11 terror attacks to be organised by the Mumbai Police.
On Nov 26, 2008, 10 armed terrorists sneaked into Mumbai and unleashed mayhem that left over 170 people dead.