Multitalented actress Kangana Ranaut is set for a brush with the underworld on screen afresh after her critically acclaimed role in "Gangster".

Kangana disclosed that her role in her forthcoming flick "Once Upon A Time In Mumbaai" is a cross between don Haji Mastan's wife Sona and yesteryears heroine Madhubala.

Kangana said, "In real life Haji was a big fan of Madhubala-ji and he fell in love with Sona who looked like her. So my character is a cross between the two."

"The character I am playing has some similarities with Madhubala-ji... like the way she was a superstar and had problems in life...," she added.

While talking about her role Rehana in Once Upon…, the actress said, "Rehana is a very big star... she is the woman who evokes desire in everyone and then she falls in love with this gangster and discovers a new world. My character transforms from a star to a woman."

She added that Rehana's role might be similar to that of Madhubala but Kangana was inspired by other yesteryears beauties too for the role.

"I observed 70's actresses like Zeenat Aman and Parveen Babi... they were the rebels who wore bikinis and were style icons. My character is somehow like them," Kangana said.

Directed by Milan Luthria, the film, which is primarily set in the 1970s Mumbai, will trace the changing face of the underworld through the eyes of a police officer. The story follows the rise of Sultan (Ajay Devgn), and his eventual fall when his protege Shoaib (Emraan Hashmi) challenges his supremacy and usurps power to rule the underworld in the city.

The film, which will also features Prachi Desai, Ajay Devgan and Emraan Hashmi is due to release on July 30.

On her personal life, Kangana is candid and said that she doesn't care what people think of her. And being a Bollywood diva is not really her cup of tea.

"I really don't care what people think of me and how they perceive me. That is okay with me because I don't make an extra effort to be friendly to people. I do things I like doing," she said.

Kangana is not like other Bollywood celebs, who are interacting with buffs on micro-blogging site Twitter but maintains she shares a "personal relationship" with her well-wishers. (With Inputs from Agencies)