If you have seen Kahaani, you won't forget three things: Vidya Balan's mind-blowing performance; Kolkata at it best during the Durga Puja festival; and the actor who played the role of the caring Inspector Rana, who helps Vidya in the search for her husband.

But just who is this actor who has made such an impact with his very first film? Parambrata Chatterjee is a well known actor in Bengali cinema. He began his acting career with television in 2002 and switched to Bengali films in 2003.

"In 2009, I quit films and went to the UK to study filmmaking for a year. I had finished my course and was thinking of returning when I got a call from Sujoy Ghosh (Kahaani's director) about Kahaani. We spoke to each other on Skype for two hours. He narrated the script. I immediately came back and did a screen test and a two-day workshop and on the third day we were shooting," says Parambrata, making it all sound very simple.

Image: Vidya Balan and Parambrata in Kahaani