Alia, 23, will be seen in a completely deglam avatar as a migrant Bihari labourer, who is a hockey player, in director Abhishek Chaubey's "Udta Punjab".
"It was hectic and physically very demanding kind of a film. I had to push myself despite the injuries I had. I trained for hockey before starting the film. One would need to have a lot of years of practice to pull that off convincingly," Alia told reporters here at the launch of "Ikk Kudi" song from "Udta Punjab".
The "Shaandaar" star said as an actor she was just "pretending" to know how to play hockey, with help from coach and students who got her to achieve the perfect body language.
"I was just pretending to know how to play hockey. I got a lot of help from the director, the coach and the students over there to get the body language correct."
"I did try, worked hard, wanted to be comfortable with the hockey stick, and bring out a certain ease which comes from the body language of hockey players. There is a little strength and force and I wanted to bring that in my character," Alia said.
"Udta Punjab" revolves around drug-related problems in Punjab. The film stars Shahid Kapoor essaying the character of a high-on-drugs, long-haired rockstar Tommy Singh.
Kareena Kapoor Khan plays a doctor who is determined to fight the illegal transportation of drugs, while Diljit Dosanjh portrays a police officer. The film is scheduled to release on June 17.