They are part of the nine "Divya Desams" located along the Tiruchendur-Tirunelveli route in Tamil Nadu, India on the banks of Thamiraparani river.

Constructed in the Dravidian style of architecture, the temples are dedicated to Vishnu who is worshipped as Devapiran and Aravindalochanar and Lakshmi as Varagunavalli and Karuthadankanni.

The ten-day annual Vaikuntha Ekadashi festival held during the Tamil month of Margali (December–January) and the Nammalvar birth celebrations with Garudasevai are the two most prominent.

The temples are maintained and administered by the Hindu Religious and Endowment Board of the Government of Tamil Nadu.

In his search for land, he ploughed at this place, and found a balance (tola) and a bow (vil).

Suprabha continued to perform penance, at the end of which the devas received a share of the offerings (Havibhaga).

[3][4] Another regional legend tells of Somaka, an asura, who defeated Brahma, the Hindu god of creation, and stole the four Vedas (sacred texts) from him.

Brahma was helpless and he did severe penance in the banks of Tamiraparani River seeking favour from Vishnu in the form of Devapiran.

The Pandya ruler Jatavarman Kulasekaran I (1190–1216 CE) also offered a similar grant to the temple.

An official of the Madurai Nayak rule, Vadamalayappa Pillai arranged for the installation of Dasavathara images and Thiruvenkamudayan hall.

The wooden chariot with minute sculptures were installed by Paramasivan Pillai during modern times.

[5] Vaikuntha Mahatmeeyam is another work in Sanskrit that glorifies the temples and is a part of Tamraparani Sthalapurana available only in palm manuscripts.

During the 18th and 19th centuries, the temple finds mention in several works like 108 Tirupati Antati by Divya Kavi Pillai Perumal Aiyangar.

[5][9] The Garuda Sevai utsavam Festival in the month of Vaikasi (May–Jun) witnesses nine Garudasevai, a spectacular event in which festival image idols from the Nava Tirupatis shrines in the area are brought out on Garuda vahana (sacred vehicle).

An idol of Nammalvar is brought here on an anna vahanam (palanquin) and his pasurams (hymns) dedicated to each of these 9 temples are recited.

The utsavar (an idol of the festival deity) depicting Nammalvar is taken in a palanquin to each of the 9 temples, through the paddy fields in the area.

As at other Vishnu temples of Tamil Nadu, the priests belong to the Vaishnava community, from the Brahmin class.

The temple rituals are performed four times a day: Kalasanthi at 8:00 a.m., Uchikalam at 12:00 p.m., Sayarakshai at 6:00 p.m., and Ardha Jamam (or Aravanai Pooja ) at 8:00 p.m. Each ritual has three steps: alangaram (decoration), neivethanam (food offering) and deepa aradanai (waving of lamps) for both Aravindalochanar and Devapiran.