'Shaandaar' is scheduled to release coinciding with Dussehra next month.
"'Gulabo..' was the first song that Shahid and I had to do. I was damn nervous dancing with him. I had to have at least 10 per cent of his energy. He has 100 per cent. I rehearsed a lot. I did work hard a lot," Alia told reporters here at a promotional event of the Vikas Bahl-directed film.
"I cried also for this, for getting such (hard) steps. But Shahid helped me a lot," she said.
Choreographer Bosco too agreed that Alia did cry while perfecting her dance steps.
Shahid said he faced a lot of competition from his 22-year-old co-star as she would be rehearsing while he was hanging out on the sets.
"Today's actors are 'shana' (smart). We usually used to hang out everyday after the shoot. I got to know that Alia used to rehearse. As she wanted to get better than me. There was competition for it."
Both the actors broke into a jig in front of media at the event.
It is for the first time that Shahid, 34, and Alia have teamed up for a film and their on-screen chemistry in the movie's trailer has been largely appreciated.
When asked about the reason behind their chemistry, Shahid said, "I don't know what works in our favour. We did not interact much before we got on board for this film. We had met once or twice after we started doing the film. We just got along well. She is unassuming, nice and a wonderful person."
Alia revealed she had a tough time doing a bikini scene in the film.
"It (temperature) was minus two and I was doing this scene. I was not comfortable. I was freezing," she added.
