Devaadi Raja Perumal temple (தேவாதிராஜன்) (also called Amaruviappan temple) in Therazhundur, a village in Mayiladuthurai district of the South Indian state of Tamil Nadu, is dedicated to the Hindu god Vishnu. Constructed in the Dravidian style of architecture, the temple is glorified in the Divya Prabandha, the early medieval Tamil canon of the Azhwar saints from the 6th–9th centuries AD.
It is one of the 108 Divyadesam dedicated to Vishnu, who is worshipped as Amaruviappan and his consort Lakshmi as Sengamalavalli Thayar.The original structure of the temple was built by the Karikala Chola during the 1st century CE, with later additions from the Cholas during the 11th century.A granite wall surrounds the temple, enclosing all its shrines.
The temple tank is located opposite to the temple, outside the main entrance. The temple follows Vadakalai tradition of worship. Six daily rituals and many yearly festivals are held at the temple, of which the Vaikasi Brahmotsavam during the Tamil of Vaikasi (during May - June), and Vaikuntha Ekadashi during Margazhi (December - January) being the most prominent.
The temple is maintained and administered by the Hindu Religious and Endowment Board of the Government of Tamil Nadu.Amaruviappan temple is located in Therazhundur, a village located 10 km (6.2 mi) from Mayiladuthurai in Mayiladuthurai district. The temple is believed to have been built by Karikala Chola during the 1st century CE, with additions in the later century.
The temple tank is located in front of the temple and the temple is approached to the roads in the embankment. The temple has a five tiered rajagopuram, the gateway tower that pierces the granite concentric walls. The central shrine houses the image of Devadi raja Perumal in standing posture and the festival deity Amaruviappan, housed under the Garuda Vimanam. There are also other images of cattle and sages in the sanctum.
There is a separate shrine of Sengamalavalli, the consort of Amaruviappan in the second precinct. There are separate shrines for Agastya, Narasimha, Rama, Viswaksena, Hanuman and Azhwars.[5] Adisesha, Surya Prabhai, Indra Vimanam, horse and elephant are the mounts used for Amaruviappan. For the goddess, the mounts used are Surya Prabhai. Yali, Swan, elephant and lion. The sub-temples of this shrine are Govindarajar temple.
There are two water bodies associated with the temple along with river Kaveri, namely Darsa Pushkarani located in front of the temple and Gajendra Pushkarani in the northern side