Mumbai: He has kept the cash registers ringing at the box office with hits like "Wanted", "Dabangg" and "Bodyguard" but superstar Salman Khan feels that you need to work harder as you grow old.

"There is this amazing thing in the film industry when you are younger, or in your teens...people tend to forgive all your things saying you are young. Now in this film industry the more you grow older you need to work that much harder. It is strange," Salman said.

The 46-year-old actor, who is a fitness freak, says, he has to work out three times more, to match up to Gen next.

"When you are younger you are more run faster and kick faster and these things then create trouble later. Like for the younger generation of this film industry I had set a trend...but now I would suggest them to eat properlyand have fun," Salman said.

"I have worked hard to make this kind of body. I feel whatever hard work I had put up that time, today these new kids are doing the same and hence I feel I need to work two-three times more," he said.

 Salman had undergone a nerve surgery in the US in last August. And reportedly, the actor the pain has developed again.