Dev Karan Singh (Aamir Khan), a Casanova and ambitious painter deep in debt, agrees to marry Anita (Deepti Bhatnagar), the daughter of Singhania (Dalip Tahil), a rich tycoon. Priya (Manisha Koirala), a music teacher for children, is engaged to Raj (Anil Kapoor), whom she has agreed to marry because he had helped her when she was in need. Priya and Dev meet on a cruise. Dev becomes fond of Priya. Dev is a fun loving and mischievous person. He tries to get close to Priya. Initially, She doesn't get impressed by Dev, but later falls in love with him. However, due to them already being engaged to other people, they agree to work everything out and meet in 6 months on Valentine's Day to get married.