Filmmaker Karan Johar, who became the father of twins Roohi and Yash via surrogacy, quips that they are the finest "Dharma productions".

While talking about the experience of parenthood during a book launch here on Thursday, Karan said: "It is daunting, exhilarating and shocking in my case. It's just everything that I thought it would be and everything that's not. I still look at them and can't yet believe that they are mine.

"I am just blessed every morning by their presence. I always say that they are the finest Dharma productions, literally and otherwise."

Karan and Shahid Kapoor's wife Mira attended the launch of celebrity nutritionist Pooja Makhija's new book "Eat Delete Junior: Child Nutrition for Zero to Fifteen Years".

Talking about the challenges of parenthood in terms of nutrition, Karan said: "I am playing both mother and father in this dynamic, so I have a double role to play and for me, it's even more daunting. I have told myself that I am not going to be a hysterical, hyper parent because I see so many of them around me and specially leading actresses who become mothers."

"From leading actresses, they become paranoid parents."