New Delhi, March21, 2008 : Rani Mukerji, one of Bollywood’s highly acclaimed and prominent actress celebrates her 30th Birth day on March 21.Rani’ made her acting debut with Raja Ki Aayegi Baraat in 1996, but her first commercial success came with Karan Johar's romantic film Kuch Kuch Hota Hai in1998, for which she also won a Filmfare Best Supporting Actress Award. She later starred in many films, most of which fared below expectations.