"I don't know if I have ... managed to make people forget Geeta Rao and remember another character that I have played," she said on Monday.
"I am still kind of struggling to get over it and make people remember me by something else that I have played. I think it's still the most special one," added the actress, who has also featured in Sorry Bhai, Yeh Saali Zindagi and Desi Boyz.
Singh, who took a break after her first film to start a family with golfer-husband Jyoti Randhawa, says being an actress was never her ambition.
"I started with something like that and I didn't plan my Bollywood career. I did not want to be an actress, never thought I would be here. It came my way and it just went off really well," said the 35-year-old.
Talking about her upcoming films, she said: "My next release is I, Me Aur Main which has John [Abraham] and Prachi [Desai] with me in the film. It is about a woman who kind of realises the man is not quite committed to the relationship and what does she do about it.
"My second film is actually a very strange love story. It is opposite Arjun Rampal and directed by Sudhir Mishra. It is set in a sexual harassment case but it's about two people who have been in love but are now stuck in this case and what happens to them and their life."
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