Balan 'requests on-set smoking ban'

Vidya Balan is said to have asked unit members on her new film not to smoke.

The actor, who plays the role of a pregnant woman in Kahaani, has requested that smoking is banned on the set of the Sujoy Ghosh project.

According to The Times of India, the director commented: "Vidya eats, sleeps, and breathes her character. She's so much into it that sometimes it gets scary."

The filmmaker added: "But we are all cooperating and I as a director, I love it."

Balan recently performed another pregnant role in the commercially successful Amitabh Bachchan production Paa.