"There are three different phases of his life and we had to gradually show the progression so basically he has three different looks in the film," Sharma said.
Set in 1980s Gujarat, Raees tells the story of a bootlegger whose business is thwarted by a tough policeman. The film is produced by Excel Entertainment and Red Chillies Entertainment.
Sharma also feels Shah Rukh is very open to experimenting with his looks.
"It's always a pleasure to work with Shah Rukh because he is so open for experimenting with his looks. He came up with some wonderful suggestions during trials and he tries to make the character as real as possible," he said.
Talking more about his look, he said: "It's a typical 80s style look with big collars. Everything will have pastel colours and slowly moving to dark colours. We have kept the elegance intact but maintained that it shouldn't become over-board."
Directed by Rahul Dholakia, the film also features Nawazuddin Siddiqui and marks the Bollywood debut of Pakistani actress Mahira Khan.