No One Killed Jessica, slated to release early next year has Vidya Balan playing the role of Sabrina Lall, the sister of model Jessica Lall, who was killed more than a decade ago.

In an interview, Vidya said that she studied the case history of the model and the steps, which Sabrina took to achieve justice for her sister. Sabrina, however, read this script before the film went on floors with director Rajkumar Gupta.

Vidya shares that when the killing had actually happened, she was herself a young student. It had motivated her to see the youth voicing their thoughts on the killing and asking the judicial system for justice to be delivered.

For Vidya, playing the role has been emotionally taxing, and after the shoot, she says she understands what Sabrina must have gone through, although she had never met or spoken to hr personally. Thus, she believes, the battle for justice should have been shorter than what it turned out to be.

For now, Vidya is touring various cities in India with Rani Mukerji (who plays a journalist in the film) for promotion of the film.

The film is focussed not on how and why did Jessica get killed, but how Sabrina faced the challenge of getting justice for her sister.