Neerkumizhi (2001)

Sethu, an orphan is a patient who is constantly playing pranks on the other hospital patients, the nurse in-charge and the doctors. A romantic bond develops between a young doctor, Indra and another patient, a football player, Arun much to the chagrin of her father, the senior most doctor in the hospital. The football player has a greedy brother who tries to arrange for his sibling to be killed. How Sethu, on learning that he is terminally ill cherishes the short time he has to live and takes it upon himself to unite the lovers forms the rest of the story.