The "Krrish 3" collection includes action figures, toys, apparel and publishing material. More than 150 products will be available as part of its merchandise line.
Hrithik, who has two sons, says it is like a "service to the children of the world".
"I am happy to be associated with this merchandise. I still remember, in my childhood days, we were not really well off. I used to play with pens and pencils and used to assign them superhero status. Today, (through this line of merchandise), we are providing service to children of the world. It's a wonderful service," Hrithik said here at the unveiling of the merchandise.