/> In order to play the globetrotting, high-flying-tycoon- biwi in David Dhawan's Do Knot Disturb, Sushmita Sen has closely studied video footage of Neeta Ambani to familiarise herself with the body language, dress sense, and general demeanour of business magnate Mukesh Ambani's wife.

Sushmita's preparation as an actor did not end there. The villas and mansions that producer Vashu Bhagnani and director David Dhawan zeroed in on in England just didn't make the grade with the exacting Ms Sen.

Says Vashu, "None of the places we chose was spacious or sophisticated enough to be worthy of Sushmita's character.

She needed a house she could descend on in her own chopper. Her driveway needed space enough to park 12 of the world's swankiest cars. And her living-room space alone is 10, 000 square feet."

Sushmita had two pre-conditions before doing the film she wanted her tycoon act to be a world-class one and secondly, this time after Biwi No 1 where she played the other woman, she wanted to play the wife.

Says Vashu, "She was very clear. She wanted to play the kind of a strong assertive wife who's also a businesswo-man constantly on the move." Sush plays Kiran Saxena, Govinda's wife in the film.

Added Vashu, "When Sushmita enters a room, she looks naturally royal and classy. That's the quality we want in the character."

While art director Leela Chanda was instructed to construct a mansion in Delhi at a stone's throw from Rajiv Gandhi's farmhouse, Shahid Amir stepped in place of Sushmita's regular fashion designer Vikram Phadnis to do her styling.