New Delhi, Jan 30 : Vidya Balan, who lived the character of Silk for months for `The Dirty Picture', is now flaunting a baby bump for her upcoming flick `Kahaani'.

The 34-year-old actress will be seen playing a pregnant woman in the movie.

As rumours have it, the `Heyy Babyy' star is working hard to look as close to authentically pregnant as possible.

"Vidya met doctors, people abroad and learnt about their typical lifestyle. She would make a list of dos and don'ts for a pregnant woman," a source close to the star said.

The buzz doing the rounds is that the actor even made a list of superstitions followed by pregnant women and would eat a salad called the Grandmother's salad to prepare for the movie. (ANI)