The actress takes on the part of the eponymous character, a personal assistant.
She told the Hindustan Times: "I'm glad that I'm not a stereotypical actor. I have the freedom to choose the roles I want.
"I'm thrilled at the response I'm getting. I never do any research for my roles. Madhur [Bhandarkar] explained to me the kind of character he had in mind and that's the guideline I followed.
"I'm happy that people have loved my performance. Madhur was one of the main reasons I took up the film. Also, this is my third film with UTV and I guess we're lucky for each other."
Last year, she claimed her career was just "taking off" because she is always prepared to play unusual characters.
In 2009, Dutta made her Hollywood debut with fellow actress Malika Sherawat in the horror Hisss.
Watch the song 'Main Heroine Hoon' from Heroine below: