The region derived its name Peruvalassery, now colloquially referred to as Peralassery, for the ‘peruvala’ or ‘big bangle’ worn by Lord Rama as a symbol of his kingdom. Legend says the temple dates back to the Thretha Yuga and came into being when Lord Rama, Lakshmana and Hanuman stopped by the region enroute their journey to Lanka for rescuing Sita. Sensing the presence of Lord Subramanya, with permission from Lord Ayappa, Lord Rama decided to consecrate an idol of the deity there.