Aishwarya Rai | Aishwarya Rai in Bikini

A former Miss World, Rai describes her character as a sassy girl who wants to be one of the guys.

With Hrithik Roshan as her co-star, Rai's role is high on style and fashion, she told the Mumbai Mirror newspaper.

"I play this petty thief who thinks she's pretty cool. My character thinks she's smarter than the smartest," said Rai. "She's a sassy girl and at the same time she's a cool dude."

The movie is a sequel to the 2004 hit "Dhoom" ("Big Bang"), in which a gang of bike thieves rob rich Mumbai businessmen.

It was shot largely in Brazil and South Africa and also features Abhishek Bachchan and Bipasha Basu.

Rai said the movie was "high on the hot and sexy elements" and actors had to look great in every scene.

"It was just the need of the hour. We had to constantly pay attention to our hair, clothes and body language," she said.