Amitabh Bachchan paid an emotional tribute to the legendary ad man, Piyush Pandey, who passed away on Thursday morning at the age of 70, after battling pneumonia. In an emotional blog post, Amitabh expressed his sorrow, referring to Piyush as "a creative genius, a most amiable friend, and guide," and further stating that the advertising icon's legacy "shall forever be an eternal emblem of his immeasurable creativity." Amitabh wrote on his blog, "A creative genius .. a most amiable friend, and guide .. has left us .. No words to express our grief .. Piyush Pandey, passed away this morning ..