The "Student of the Year" co-stars will be seen sharing screen space in filmmaker Karan Johar's upcoming family film "Kapoor and Sons".
"Both of us have done a few films in between and now we are coming together so there is that change but inherently we have remained the same.
"He has become more comfortable, easy confident and happy. He has become the kind of a person, who wants to make everyone happy on the set," Alia told PTI.
"Fawad is fantastic. He is a very talented actor. I was very surprised and happy with the spontaneity he and I managed to bring on screen in the scenes we have together.
"I know he is a big star and there have been several women, who have come to me and said, 'Oh, you are working with Fawad! It is so exciting!' He is very down-to-earth and very sweet guy," she said.