The director says a cliche it may sound, but the two will be seen in a completely new avatar in the movie.
"Yes, finally we have confirmed Kareena for the role. I feel she is a stunning looking girl and she suites the character best. I am sure she will do justice to the film," said Malhotra.
"I am not allowed to talk much about my film, but all I can assure you is Kareena and Hrithik will be seen in a never before role in 'Shuddhi'. I know it's the most cliche line ever, but I can assure you on that," added the director who made 'Agneepath' remake with Hrithik.
Was it a conscious effort to reunite Hrithik-Kareena on screen almost after 10 years?
"No, it was not a conscious decision, it was just a coincidence. They both look lovely together, the script demanded them and I am lucky to have them on board," he said.
Kareena-Hrithik last outing together was 2003 release 'Main Prem Ki Diwani Hoon'. They were also seen together in 'Mujhse Dosti Karoge!' and 'Kabhi Khushi Kabhie Gham' and 'Yaadein'.
Talking about Kareena, Malhotra said, "Kareena is a thorough professional and she took it as any other job. I don't think there are any differences."
'Shuddhi', which will be produced by Karan Johar, will go on floors by early next year.
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