MUMBAI: Bollywood star Hrithik Roshan is back in action after undergoing brain surgery last month for an injury suffered while performing a stunt for an upcoming film.

Roshan, 39, said he was “doing absolutely fine” as he launched the trailer of “Krrish 3”, the latest movie in the hit superhero franchise.

“Even with a hole in my brain, my spirit has been intact,” Roshan told a news conference in Mumbai on Monday, his first official appearance since his operation on July 7.

“Life hits you hard. But it takes you three seconds to decide if you are a superhero or not. I am,” he added.Roshan, who enjoys a huge fan following because of his macho on-screen persona, was injured while shooting an action sequence for “Bang Bang”, an Indian remake of the Tom Cruise-Cameron Diaz hit movie “Knight and Day”.

The injury triggered headaches that were caused by a subdural haematoma or clot, often caused by bleeding in the brain due to a blow to the head.

Afterwards, Roshan underwent surgery.

Doctors told the actor to rest for four weeks after the operation, delaying the shooting schedule of “Bang Bang”.

The first two movies in the Krrish series drew huge turnouts at the box office.

All three movies have been directed by Roshan's father, Rakesh Roshan.

“Krrish 3” will be released in November during Diwali, the Hindu festival of lights which is one of the country's biggest celebrations.