kahani only kahani with thriller--

Kahani  has also been a landmark in Vidya Balan's career, who is now giving top heroines like Kareena , Katrina and Priyanka a serious run for their money. Here are the unique elements in the film that worked wonders at the box office and for Vidya as well.

A pregnant woman as the protagonist:At a time when all Bollywood heroines are hiring stylists and make-up artists from Hollywood, a totally non-glamorous and heavily pregnant Vidya Bagchi strode onto the screen wearing a non-descript flowing dress. That itself got the audience hooked onto the screen.

A film without a hero:When most film heroes are still showing off their six-packs.Sujoy Ghosh decided to break all conventions and not have a hero in the script at all! Vidya Balan carried the whole film on her shoulders along with the character actors- something that is still a rare phenomenon in Bollywood.

Unusual villains:When most filmmakers spend crores to get the 'look' of the villain right, the villains in this film were just 'normal' people. In fact, Saswata Chatterjee, who played a contract killer in the film, looked anything but a villain with his round.

The sudden twists:The rapidly changing circumstances and situations made the film really fast. An innocent pregnant woman's journey to find her husband suddenly turned into a hot spy-chase. The most sudden twist was, of course, reserved till the very end where Vidya turns into a spy herself.

An amazing supporting cast:The supporting cast of the film is seasoned theatre actors from Bengal like Parambrata Chatterjee (Satyaki) and Kharaj Mukherjee (inspector at Kalighat Police Station). The other supporting characters like Nawazuddin Siddiqui (Khan) and Dhritiman Chatterjee (K Bhaskaran) are also among the most experienced theatre actors in Mumbai.

Kolkata 'captured' like never before:This film captured the City Of Joy like nobody else. The film effortlessly roamed about in the dingy lanes and by-lanes of north Kolkata and Kumartoli (where Durga idols are made) and made every frame look so beautiful! Suddenly Kolkata looked romantic again! Of course, it had to take a pucca Bengali like Sujoy Ghosh to make it possible.