The film tells the story of Aman (Shah Rukh Khan), a free-spirited and enthusiastic young man who befriends Naina (Preity Zinta), a shy and introverted college student. Aman, who is suffering from a terminal illness, becomes determined to help Naina overcome her past and find her true love. Along the way, he also befriends Sanjay (Saif Ali Khan), Naina's best friend.