 Sushma Seth, Reema Lagoo, Lillete Dubey and Delnaaz Irani play supporting roles.The film's story focuses on Naina Catherine Kapur (Preity Zinta), a MBA student who falls in love with Aman Mathur (Shah Rukh Khan).He does not reciprocate her feelings as he is a terminally ill heart patient, a fact he hides from Naina.