Priyanka Chopra's Mary Kom to release on Oct 2

Actress-singer Priyanka Chopra has sung a lullaby in her forthcoming film 'Mary Kom', a biopic on the five-time World Champion boxer. 

"I have sung a lori (lullaby) in the film, which comes in the important part of the film. It's a very intimate conversation between the mother and child and yes, it was fun. It has a good tune," said Priyanka. She was speaking at the trailer launch of Mary Kom on Wednesday.

Priyanka Chopra poses for a photograph during a promotional event for the forthcoming Hindi film 'Mary Kom' in Mumbai.

Omang Kumar is "very happy" with the response.

"After a long time there has been a frenzy of this sort surrounding the release of a poster. It felt good to hear all the fabulous comments. We had to live up to people's expectations with the teaser also. I think we succeeded in doing so. Now we have the trailer coming up. I am very excited. It's been a long wait for me. I can finally showcase my work to the world," he added.

Mary Kom is an Indian biographical sports drama film directed by Omung Kumar and produced by Sanjay Leela Bhansali on a story and screenplay written by Saiwyn Quadras. Rob Miller of ReelSports, the sports action director for Chak De! India and Bhaag Milkha Bhaag, coordinated the sports action sequences for the film. Based on the life of the Indian boxer Mary Kom, the film stars Priyanka Chopra in the lead. Minakkshi Kalitaa, Shishir Sharma and Zachary Coffin also star. First look of the movie unvield on 15 July 2014 by Priyanka Chopra. The film is scheduled for release on October 2, 2014. Movie will be premiered at the Toronto International Film Festival 2014.