"Ranbir doesn't like to portray characters which are larger than life. I am very proud that he took such challenges. But I don't like his (Ranbir) films because as an actor I find flaws in them," Rishi said.
The 60-year-old star, who is celebrating his 40-years in cinema, says he and wife Neetu Singh don't interfere in Ranbir's career.
"He is absolutely on his own and we never interfere in any of his decisions. When Ranbir joined the industry he told his mother that he wanted to portray characters which a boy of his age would do in real life," said Rishi.
Ranbir has impressed everyone with power packed performances in films like "Rockstar" and recently released "Barfi!" where he plays the character of a deaf and mute person.
The "Bobby" star, who was in the Capital to inaugurate a week-long retrospective of his films, said he always wanted to become an actor.
"I always wanted to be an actor. When I was a kid, Shashiji used to tell me that I have the symptoms of an actor because while crying I always used to look at the mirror.
"Moreover, being born and brought up in a film background it was a natural process to follow the path of the elder members of the family," he added. (MORE)