It was recently suggested that Johar might give the actress a project to direct after her marriage to Saif Ali Khan.
However, the Hindustan Times reports that Johar has quashed the rumour, saying: "No, that's not true at all. As everyone knows, Kareena is a great actor and all she should ever do is act.
"Honestly speaking, I don't think I will ever lumber the job of a director on her. She is too beautiful for that."
Following the success of Ek Main Aur Ekk Tu, Johar says he is keen to reunite Kapoor and Imran Khan in another film.
"I would love to. Their pairing has been accepted and people have loved them. So who knows, very soon, we'll have a film with both of them again," he said.
"The movie has an unconventional feel and treatment, but yet it was loved by the audiences. What I especially feel proud of is the fact that I have given the industry and my company two new voices through Karan Malhotra and Shakun Batra right at the onset of 2012.
"As for Kareena, we consider her to be our in-house Dharma girl. I am happy to see that she is being praised for her performance."
Trade figures have revealed that the Dharma Productions and UTV Motion Pictures film has collected about Rs 29 crore within five days of the film's release in the domestic market, and the film has crossed the $2.3 million mark overseas.
> Imran and Kareena superb in 'Ek Main Aur Ekk Tu', says Punit Malhotra
> Kareena Kapoor: 'I just want to be a movie star'