He took to micro-blogging site Twitter to clear the air.
T 1724 -The news by media that PM and PMO have asked me to be involved in a campaign film, is incorrect !! Kindly rectify .. thank you !!— Amitabh Bachchan (@SrBachchan) January 1, 2015
Meanwhile, on the big screen, the 72-year-old actor will be seen in R Balki's film Shamitabh, co-starring Tamil superstar Dhanush and debutante Akshara Haasan.