Actress Anushka Sharma says she worked with two professional trainers to immerse herself into her role as Aafia, a scientist with cerebral palsy, in Aanand L. Rai's Zero. The actress put herself through a rigorous three-month preparation process.

"I understood the challenge that I was going to face as an actor while playing this role. That is what excited me towards the role," Anushka said in a statement. "If I were able to pull it off, I would have accomplished something. So I wanted to do it the right way and represent this correctly. Aanand sir and Himanshu (writer Himanshu Sharma) had already researched a lot with doctors (about this condition) when they came to me with the film and had sketched out my character accordingly. I understood their brief and went with their vision and met with the doctors," she added.