"There will be a song in bikini, but not an item number as such. I am not allowed to talk about anything right now," Poonam told.
Maintaining suspense around it, she added: "There may be or may not be a bikini song, but you never know it's me and you can expect anything from me."
Poonam is the model, whose offer to go nude before Team India if they won the Cricket World Cup in 2011, shot the mercury up for the India -Sri Lanka final.
She is quite a regular on micro-blogging site Twitter and often shares titillating pictures of herself. However, she is happy concentrating on her film shoot these days.
Talking further about the movie and its content, she said: "The songs are very beautiful in the film. There is a space for song and dance in the film and it is a very different story, which will change the mindset about Bollywood films that are coming right now."
Poonam has finished 60 percent of her shooting, and says some of her bold scenes will be shot in Mumbai itself.
"The rest 40 percent of the film will be shot in Mumbai. We will be shooting few bold portions in Mumbai," she said, adding: "'Nasha' is a naughty, erotic, sensuous film and those who are foot fetish will love it."
"Nasha" is directed by Amit Saxena, who earlier directed "Jism". Poonam says the director makes her feel comfortable as an actress.
"Amit has some brilliant ideas and he makes me feel very comfortable on sets. He has shot the scenes beautifully and not in a vulgar manner. I loved the way he portrayed Bipasha Basu in 'Jism'. He is a brilliant director."
Directed by Amit Saxena and produced by Aditya Bhatia 'Nasha' is an adult film which is slated for next year release.
