Kangna, 28, who was linked to a string of Bollywood actors, joked that the sequel of the Anand L Rai's 2011 film has set her against marriage.
"Marriage is very tricky. My mood has changed completely after doing this film. There was one per cent chance before but now it's no more there.
"There are a lot of conflicting expectations from today's woman. Society has different approach towards marriages and the societies we live in today have very harsh idea of a real marriage," Kangna told reporters here on the sidelines of the first motion poster launch of "Tanu Weds Manu Returns".
The "Queen" star said she identifies with her titular character.
"I very much relate to my character Tanu because she is like today's woman, who wears saree and puts vermilion on her head but at the night she goes out with her husband in mini skirt and smokes with friends," she said.
In the sequel to the 2011 film of the same name, the actress will be seen in a double role of Tanu and Datto, who are opposite of each other.
Kangna said it was difficult to bring out conflicting personalities, ideologies and body language for her roles.
"It was draining to a point... I just put whatever I knew for these two women. They are very strong and different from each other and they are against each other in the film.
Generally, double roles are very pally but here they are against. They are antagonist and protagonist in the movie at one point. They are two different extremes of mine," she said.
Kangna made her debut with Anurag Basu's "Gangster" but was a part of a string of flops like "Rascals", " Miley Naa Miley Hum", "Game" before making it big with Vikas Bahl's "Queen".
But the National-award winning actress feels it is not easy to be in a position where she currently is.
"It's true that anyone would like to be in my place. But it is not an easy place to be in and I really worked hard for it. Knowingly, unknowingly, intentionally, unintentionally, I have got into this place. It's nice but it's very hard to be in the characters that I play. The expectations I have for myself are not easy...," she said.
Asked if she has even gone through depression in her nine-year old career, she said, "It exhausts us personally at times, but I have never felt low. I don't know from where this spirit comes from. I never felt that I am not moving on with my life as I have seen the worst phases and worst time."
Kangna, who is also turning director with short film "The Touch" in collaboration with an Australian writer, said she has kept her movie at the back-burner for sometime as she is busy with her acting assignments.
"I didn't expect that I will be too busy with my acting assignments. But now that I am, I am enjoying it. The kind of people I am getting to work with is really gratifying. I don't want to miss out on these opportunities. I can direct later. I am going to postpone it a little bit," she said.
After "Tanu Weds Manu Returns", which is releasing on May 29, Kangna will be next seen in "Katti Batti". She is also working in Sujoy Ghosh's next. Four other projects, including one with Hansal Mehta, ar in the pipeline.