The 71-year-old took to Twitter to share his excitement. "Just finished my conversation at THiNK...exciting and exhilarating...and in the audience, Robert De Niro! Stumped for words," Big B posted on the microblogging site on Friday.

The third edition of the annual festival, THiNK 2013 is hosting a series of panel discussions which will bring together eminent names from different walks of life- politics, technology, science, literature, medicine, environment, pop culture, business, media, religion, sport and cinema.

The festival, which started on Friday, will conclude on Sunday.


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