This is the unique temple in South India where idol of Lord Vishnu, in a sitting posture with Anantha, the divine serpent, forming his throne and spreads its five hood over the god.
Panchari Melam performance at Sree Poornathrayeesa Temple
The main festival if the temple, Vrishchikoltsawam, is conducted every year in the month of Vrishchikam (November–December), kicking off the festival season in Kerala ( December to April).
This 10 days festival coincides with Onam.
Deities from local temples like “Perumthrikkovil”(Lord Shiva) and “Pishari Kovil”(Lakshmi) will come here during their annual festive occasions to participate in a combined procession, locally called as “Sankara Narayana Vilakku”(Shiva and Vishnu) and “Lakshmi Narayana Vilakku”(Goddess Lakshmi and Lord Vishnu) respectively.
Aarattu (the holy bath of the deity) after the annual festival of Sree Poornathrayeesa takes place at the temple pond of Chakkamkulangara Shiva Temple, nearly half a kilometer North-East to Sree Poornathrayeesa Temple.
Legend has it that the idol of Sree Poornathrayeesa was presented to Arjuna by Lord Vishnu.
Arjuna sought the help of the Supreme being to give rebirth to the ten children of a brahmin. Arjuna along with the ten children and the holy idol returned in his chariot and handed over the children to the brahmin. Later a temple was built here in memory of this event and the sanctum-sanctorum is in the form of a chariot.
Arjuna sent lord Ganesha to search for a holy place for the installation of the idol. Attracted by the holiness of this ancient Vedic Village, POORNA VEDAPURAM, (now Tripunithura), lord Ganesha himself occupied the place!
This angered Arjuna, kicked him aside to the southern side of the sanctum and installed the idol. in that holy place surrounded by mustard fields.
He then plucked some mustard seeds from the surrounding fields, made oil out of it to lighten the lamp.
Devotees believe the evershining Valia Vilakku in front of the idol, as the lamp lighted by Arjuna.
Burnt oil of this traditional lamp possesses great medicinal value.
Sree Poornathrayeesa is also considered as the as the elder brother of Chottanikkara Bhagavathi.
Lord Poornathrayeesa is also believed to be wedded to a Namboothiri girl,"Nangema", from Vadakkedathu Mana.