Thiruchsemponsey or Perarulaalan Perumal Temple is dedicated to Hindu god Vishnu located in Thirunangur, a village in the outskirts of Sirkazhi in the South Indian state of Tamil Nadu. 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 Peralulalan and his consort Lakshmi as Allimalar Nachiyar.
It is one among the eleven divyadesams of Thirunangur Tirupathis and is closely associated with Thirumangai Alvar. The temple is open from 8 a.m. to 10 a.m. and 5 p.m. to 7 p.m and has four daily rituals at various times of the day. The Thirumangai Azhwar Mangalasasana Utsavam celebrated annually during the Tamil month of Thai is the major festival of the temple during which the festival images of the eleven Thirunangur Tirupathis are brought on mount designed like Garuda, called Garuda Vahana, to Thirunangur.
The legend of all the eleven temples of Thirunangur are closely associated with each other. As per legend, the Hindu god Shiva in the form of Rudra started dancing in fury at this place after the death of his consort Uma due to the yagna (sacrifice) of Daksha. Each time his lock of hair touched the ground, there were eleven other forms of Shiva who appeared. The celestial deities were worried that if the dance continues, it would result in decimation of entire creations. They prayed to Vishnu for help, who appeared at this place. On seeing Vishnu,
Shiva's anger was reduced and he requested Vishnu to appear in eleven forms like he did. On his request, Vishnu appeared in eleven different forms at Tirunangur. The eleven places where Vishnu appeared are believed to be where the eleven temples in Tirunangur are located. It is believed that Vishnu advocated Rudra the importance of Dvadasanamems or the twelve Vaishnava marks in the respective parts of the body.As per another variant, Shiva requested Vishnu to appear in eleven different forms like him to control the eleven Shiva forms he created.The eleven Rudras, called Ekadas Rudras and king of devas, Indra, are believed to have worshiped Vishnu at this temple.
Rama, the seventh avatar of Vishnu came to this place after killing Ravana. He made a golden idol of a cow and gifted to a Brahmin from the ashram of sage Dranethra, from where the place obtained its name. It is believed that Azhagiya Manavalar, the presiding deity at the Azhagiya Manavala Perumal Temple in Trichy came to this place at the request of Shiva. The Brahmin is believed to have built the temple with the gold he obtained and hence it is called Thiruchemponsey (chempon indicated gold in Tamil).
The temple is revered in Nalayira Divya Prabhandam, the 7th–9th century Vaishnava canon, by Periazhwar, Thirumalisai Alvar and Thirumangai Azhwar. The temple is classified as a Divyadesam, one of the 108 Vishnu temples that are mentioned in the book. During the 18th and 19th centuries, the temple finds mention in several works like 108 Tirupathi Anthathi by Divya Kavi Pillai Perumal Aiyangar.It is believed that saint Thirumanagai Azhwar visits the place every year to the festival to consecrate the eleven deities.
As per local belief, the fresh winds which swirl the paddy fields before the day of the festival indicates a good harvest for the season. As per another legend, the sages Madangar, Domyar, Vyaghrapada and Udangar set up their hermitages in this place. During the period of Mahabharatha, Takshaka, the mighty snake king who killed king Parikshit, ruled the place called Nagapuri, which eventually became Nangur.