Most of the leading Bollywood actress declined the secondary role of 'Shruti Ghosh'. Later director cast Tollywood actress Ieana D'Cruz after a long negotiation.
The film created a benchmark while earning 100 Crores despite being an offbeat film.
The mute and deaf title character played by actor Ranbir Kapoor is the voice for the sanitary tobacco warning before the movie begins. This is the only part where Ranbir says anything in the movie.
The official submission of India to the Best Foreign Language Film for the 85th Academy Awards 2013.