"From the beginning, Bobby was like 'I want Sunny to be Leela'. So I'm very happy that he cast me for this role. It is a role of a life time," Sunny said in an interview.
Sunny plays the role of a mysterious princess in the film.
The "Ragini MMS 2" actress also heaped praise over the director and her good friend Bobby.
"It was great working with Bobby (Khan) and the entire team. My husband, I and Bobby have been friends for a very long time. We waited to work with him and then finally 'Ek Paheli Leela' happened," she said.
"Ek Paheli Leela" also stars Jay Bhanushali, Rajneesh Duggal and Rahul Dev in prominent roles.
Largely shot in Jodhpur, the film is slated to hit theatres April 10.
