Amitabh Bachchan Birthday: Fans from across the country have come down to Mumbai to celebrate Big B`s 81st birthday. Some came dressed as his character from Coolie, and some danced on `Pag Ghungroo` from Namak Halaal`. His most famous dialogues were being recited by fans gathered outside Jalsa, his residence. Watch this video to see the fan frenzy the megastar, Amitabh Bachchan generates.