Actress Rani Mukerji can't stop heaping praises at her "Aiyyaa" co-star, southern actor Prithviraj Sukumaran.

"He is a very special actor. He is handsome and lovely to work with too. He is just awesome. Now I know why he is such a huge star," she added.

Co-produced by Anurag Kashyap and Viacom 18, the movie is said to be about a woman who finds a man desirable because he smells good. It releases Oct 12.