Gunaseelam Vishnu Temple is a Hindu temple dedicated to Vishnu located 20km from Trichy, in the South Indian state of Tamil Nadu. It is located on the banks of river Kollidam. A visit temple is believed to be a curative to the mentally challenged people, who are taken to the temple and kept in the temple premises for 48 days. At the end of the 48 days it is believed that their illness is cured by the grace of the presiding deity, Prasanna Venkatachalapathi. The temple has set up a mental health rehabilitation centre that has the official stamp of the Tamil Nadu Government license, the first of its kind in Tamil Nadu.The temple has six daily rituals at various times from 6:30 a.m. to 8:30 p.m., and three yearly festivals on its calendar. The annual Brahmotsavam is an eleven-day festival attended by thousands of devotees from far and near. The temple is maintained by a hereditary executive trustee.EtymologyThe name of the place Gunaseelam derives from "Gunam" and "Seelam", meaning the place in which illness is cured. "Gunam" also means qualities and "seelam" also means "Assuming a lower position". Hence Gunaseelam is the place where Vishnu comes down and addresses the devotees problems from his heavenly position.