Rani Mukherjee, Karan Johar's muse and great buddy is reportedly going to play the lead role in Karan Johar's next film to be directed by his former assistant Soham. In fact Rani has already been sent a copy of the script and date details are being discussed. Rani has always been lucky for Karan right from his Kuch Kuch Hota Hai days.

Having agreed to do walk-in roles for Karan in Kabhi Khushi Kabhi Gham and Kal Ho Naa Ho, if any one deserves a good role in Karan's next then it's Rani.