In 'Koi Mil Gaya', a science-fiction, he played a mentally challenged individual, which seemed like a risk but Hrithik pulled it off with ease. Then came 'Krrish', which claimed to be Bollywood's first superhero movie and had Hrithik jumping around in trenchcoat and a mask. It was an instant hit with kids.

But while shooting for 'Krrish 3', Hrithik got injured badly at the Filmistan Studios after he fell down. Earlier, he was also admitted to Breach Candy hospital as he had injured his back while shooting for 'Agneepath'.

"My dad was like should we make 'Krrish' now or not should we make it in 2013 but I was sure that if we don't make it now then it will not happen. We had taken dates of everyone. After two years we had reached here and if we don't start now then it will not happen. So we had to start and I get to get into right shape," Hrithik said in a interview.

With injuries, it seemed that the actor was not able to cope up with the training for the sequel. Despite all this, for 'Krrish 3', Hrithik went ahead.

"I had to get into best shape health wise. I had to achieve a pain free body, I am like damaged goods...knee, elbow, shoulder.. all injured..," he said.

"It is a good thing that people think of me as a superhero. Two months back I did not feel like superhero. I took my 'Krrish' jacket it did not fit me, I was like I am not worthy enough to do 'Krrish' so to make myself worthy, I hunted for best trainers from UK...I had ten weeks of transformation. I lost 10 kgs in 10 weeks," he said. "Earlier, I was like I can't do action because of the slip disc..back problem I felt it was over...what to do there was depression..I used to smoke a lot. But then I thought I had to improve my health," he said.

Hrithik also showed keen interest in playing the villain for 'Krrish 3', which is now essayed by Vivek Oberoi.

"When I heard the script I wanted to play the hero and the villain. I wanted to play double role. I pushed dad to let me do both things..I nudged him...I used to tell him there is no actor to do it. But then he was like we will get someone and he signed Vivek. When I saw him (Vivek) giving the shot he was too good in that role. I couldn't have done justice to it. I am happy my father stopped me from doing it," Hrithik said.

Also, the actor feels, this is the best script his father Rakesh Roshan has written.

"This is my father's best picture till date. Colors, songs, item songs, action etc are decoration...script is more important...anything else is decoration. I have confident in the script," he said.