The Vishnu is called "Navamukunda Perumal/Tevar" as it is believed that the idol was the ninth one to be installed in the temple by a group of nine Hindu yogis known as "Navayogis".
The first eight idols sank into the Earth as soon as they were placed there and the ninth sank to its knees before it was forcibly stopped.
As the location of the sunken idols were not known, devotees used to make pradikshina on their knees.
Even Alvancheri Tamparakkal and Tirunavaya Vaddhyans were not exempted from this practice.
Tirunavaya is also known as called "Navayogisthala".

According to the legends, goddess Lakshmi and Gajendra, the king of the elephants, worshiped god Vishnu here with lotus flowers from a lake nearby; with the two devotees using flowers from the same source, its supply dwindled, and Gajendra appealed to Vishnu, who took Lakshmi by his side on the same throne and accepted worship offered by Gajendra.
The Vishnu is called "Navamukunda Perumal/Tevar" as it is believed that the idol was the ninth one to be installed in the temple by a group of nine Hindu yogis known as "Navayogis". The first eight idols sank into the Earth as soon as they were placed there and the ninth sank to its knees before it was forcibly stopped. As the location of the sunken idols were not known, devotees used to make pradikshina on their knees. Even Alvancheri Tamparakkal and Tirunavaya Vaddhyans were not exempted from this practice. Tirunavaya is also known as called "Navayogisthala".
According to the legends, goddess Lakshmi and Gajendra, the king of the elephants, worshiped god Vishnu here with lotus flowers from a lake nearby; with the two devotees using flowers from the same source, its supply dwindled, and Gajendra appealed to Vishnu, who took Lakshmi by his side on the same throne and accepted worship offered by Gajendra.
Thirunavaya Navamukunda Temple