Kangana is all charged up with her role in Milan Lutharia's Once Upon A Life Time. The film is based on the then don of the city Haji Mastan whose role is being essayed by Ajay Devgan.

While Kangana plays his love interest in the film. Yesteryear actress Sona who then resembled late actress Madhubala was the don's love interest.

Kangana will be playing Sona's role in the film.

There was a buzz that Kangana decided to meet the the yesteryear actress before taking on the role and she wanted to know the details and nuances of that character.

Sources inform that when Kangana finally met her, Sona advised Kangana to watch the films of the 70's and the 80s.

When actresses like Sharmila Tagore, Hema Malini, Asha Parekh were at the top. Sona also advised her to learn how these actresses dressed and carried themselves.

The film explores the growth of underworld in the city, in the 70s and the 80s. The film will also star Emraan Hashmi and Prachi Desai and is expected to go on floors in May. Most of the film will be shot in the city itself, except for a few sequences which will be shot in Dubai and Bangkok.

This is not the first that Kangana is playing the role of a gangsters moll. She played a similar role in Mahesh Bhatt's Gangster.

The actress is looking forward to Kites with Hrithik Roshan and Samir Karnik's Yeh Vaada Raha opposite Bobby Deol.