Throughout the late 1990s and early 2000s, Kajol established herself as a leading lady in Bollywood, starring in a string of successful films, including "Kuch Kuch Hota Hai" (1998), "Zakhm" (1998), and "Hum Aapke Hain Koun..!" (1999). Her performances earned her numerous award nominations, including several Filmfare Awards.