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"I started shooting the movie, have shot up almost five days now. I must admit is a very difficult task," said Priyanka, who was here to publicize the collection of wedding jewelry brand Asmi for Grand Carnival during the wedding in India.
"There's a fine line between caricature and real. But surely, this role is by far the biggest challenge I've found," added the 28-year-old is reportedly spending time in an asylum to enter in the skin of the character.
The film is being directed by Anurag Basu and Ranbir Kapoor has a deaf and mute, while Ileana D'Cruz is expected to play a narrator.