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, flamboyant cassanova. 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.

 

During the 6 months, Dev breaks off his engagement with Anita and starts working hard. Driven by his love, he creates and auctions beautiful paintings, and becomes very successful along with the support of his friend Natu (Neeraj Vora). On the other hand, Priya realises that leaving Raj will be wrong and sadly writes a letter to Dev, explaining everything. When Raj gets the letter instead, he supports Priya and convinces her to go to Dev. Things take a bad turn when, on her way to meet him, Priya gets hit by a car and gets her legs amputated. Dev, who waited all night for Priya, believes she has rejected him, as he does not know of her accident. Priya forbids Raj from telling Dev the truth, not wanting to become a burden on him. Now, Priya spends her time running a musical academy for small kids.

 

Though heartbroken, Dev continues his career and goes on to become a famous painter. One day, Priya attends his art exhibition and wishes to buy a painting of his, a sentimental picture of her speaking to his beloved grandmother, whom Dev had introduced to her during the cruise. Dev had said that he would not sell the painting as it was only for Priya, but upon hearing that the girl who wanted it understands the emotion behind the picture and is disabled, he tells the host of the exhibition to give the painting to her for free.

 

One day, he meets Priya again with Raj at a theatre gathering but again Priya forbids Raj of telling the truth. He visits Priya to give her an anklet that his grandmother, who recently died, had wished for Priya to have when she became Dev's bride. Initially unaware of Priya's condition, Dev realises the truth when he remembers giving the painting to a handicapped girl and finds the same painting in another room. The two embrace tearfully and he assures Priya that he will love her no matter what. Dev and Priya then married by Raj, where Dev carries Priya for the wedding rounds in the presence of Nattu and the children of the Musical academy.