Rani Mukerji (Bengali: রাণী মুখার্জী; born Rani Mukherjee on 21 March 1978) is an Indian film actress who works in Hindi movies.Making her acting debut with Raja Ki Aayegi Baraat (1997), Mukerji had her first commercial success with Karan Johar's romance Kuch Kuch Hota Hai (1998), her biggest commercial success so far, and won a Filmfare Best Supporting Actress Award for her performance in the film.