Filmmaker Anurag Kashyap is thrilled with the story line of "Kahaani" and says that the film's leading lady of the movie Vidya Balan is a true successor of superstar Aamir Khan when it comes to choice of scripts.

"'Kahaani' is how a thriller should be shot...the ending is debatable but what an effort, " the 39-year-old tweeted.

"Vidya is slowly emerging to be a true successor of Aamir (Khan)... a great career is defined by choices one makes and courage to see it through, " Kashyap added.

Produced and directed by Sujoy Ghosh, this Vidya's another woman-centric film after "Ishqiya", "No One Killed Jessica" and "The Dirty Picture". The film also features Bengali actor Parambrata Chattopadhayay and Nawazuddin Siddiqui in prominent roles.