Megastar Amitabh Bachchan, who has served as Unicef Goodwill Ambassador for the polio eradication campaign in India, says he is fortunate to be the top most influencer for the organisation. Amitabh on Tuesday shared a list of names of top influencers. "Among top 'influencers' for fight against polio, a list by Unicef. Privileged to be the top most influencer. Thank you UN!" Big B tweeted.

Amitabh Bachchan