"A lot has been written about Saif's look and his character, but I would like to say Saif is adding huge validation to the project. Saif is giving his 100 percent for Bullet Raja and he is enjoying himself. He is completely into his character and he is happy in his space," Mittra told IANS.
He said Saif will be seen in a "different avatar altogether" in the film.
For the first time, Saif has been paired opposite Sonakshi Sinha. The producer says the match looks great on screen.
"It was a conscious decision to cast both of them. We recently shot in Kolkata with both of them. Both are looking great together, and their chemistry is mind blowing. Both are brilliant actors."
Bullet Raja is directed by Tigmanshu Dhulia.