Complex sentence: The movie was the highest grossing film of the year and she won her first Filmfare Best Actress Award; the film's success established Kapoor as a leading actress of Hindi cinema, and marked a significant turning point in her career.
Split into simpler sentences: The movie was the highest grossing film of the year and she won her first Filmfare Best Actress Award. Karisma Kapoor was first recognised as a serious actor with the film, whose success established Kapoor as a leading actress of Hindi cinema and the film marked a significant turning point in her career.