Priyanka also said she is not bothered by what her contemporaries in showbiz do.
"I am very critical of myself. Everybody says this 'I compete with myself' and I really do. You can call it my selfishness, but I am not at all interested in others' lives. Whatever my contemporaries do or not do, that has not influenced my career," Priyanka said in Mumbai.
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As of now, she is content with her career graph.
"I am happy that I've always got to do good work. I have got good films and that has nothing to do with what anybody else does or not...I try and push myself as much as I can. I think I am very difficult competition for me," said Priyanka.
After making an impressive debut with 'The Hero: Love Story Of A Spy' in 2003, the former Miss World went on to do many commercially successful films. She displayed her acting skills by playing a troubled model in 'Fashion', a feisty Marathi woman in 'Kaminey', a killer in '7 Khoon Maaf' and an autistic girl in 'Barfi!'.
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Her latest film 'Zanjeer' released on Friday. And now she is geared up to play a boxer in a biopic based on Olympic medallist Mary Kom.
"Now, I have done good work in 'Barfi!'. I am thinking how it will be in 'Mary Kom'. So I do compete with myself," she said.