Kangna's playing gangster's muse again

Kangna Ranaut's so fascinated with the love story of Haji Mastan and 70s starlet Sona, that she's decided to track down the girl and do a bit of research before she steps into her shoes for her role in Milan Luthria's Once Upon A Time In Mumbai.

Haji used to be madly in love with Sona because she resembled Madhubala and even got her roles in films like Kacche Dhaage (1973). The main leads were played by Kabir Bedi, Moushumi Chatterjee and Vinod Khanna.

Kangna took a lot of pain to find Sona's address. She told a Mumbai tabloid, "I will be meeting her soon. It is a crucial preparation for my role."