Mumbai, March 5 (IANS): Actress Kalki Koechlin, who essays the role of a cerebral palsy affected girl in Shonali Bose's directorial "Margarita With A Straw", says the audition for this film was toughest for her and she took it as a test for herself.

"I loved the script. Shonali (Bose) e-mailed it to me and immediately I wrote back to her that I loved the script. It scared the hell out of me that she could even think that I could do this," Kalki told reporters here Wednesday at the trailer launch of the film.

"The audition for this film was toughest for me," she added.

"Margarita With A Straw" is a gentle coming-of-age story of a young Indian woman effected with cerebral palsy (played by Kalki Koechlin) and it also explores the sexuality of disabled people.

Kalki's performance was appreciated on the international arena and she bagged Best Actress Award for Kalki at Tallinn Black Nights Film Festival held last year.

In India, "Margarita With A Straw" is expected to release on March 13.