Actress Vidya Balan's "Kahaani" has set a new record by attracting crowds in its fourth week and director Sujoy Ghosh thanks everyone for appreciating this dark thriller about a woman's hunt for her missing husband.

The film has reportedly reached the Rs.50 crore-mark since its release March 9.

Made at a small budget of Rs.8 crore, the film's collections show that it's a bumper hit of the first quarter of the year. Despite no skin show and no glamour, the film has rocked the box office.

"Thank you again for loving 'Kahaani' as we enter 4th week. Thanx for your blessings and for everything good you wished for our film. We are in your debt," tweeted Ghosh.