The temple's origins trace back over 1,300 years to the Pallava era. It holds immense spiritual significance as it was sung and immortalized in the sacred Tamil hymns (Nalayira Divya Prabandham) by the revered Vaishnavite saint Thirumangai Alvar. Historical stone inscriptions reveal that the village was highly prosperous and served as an active center of trade and devotion during the Chola period.

Pallava and Chola Grandeur

The temple is a classic example of early Dravidian architecture, featuring a beautifully sculpted Rajagopuram (gateway tower) and a large, sacred temple tank known as the Kalyana Pushkarini.

Inside the main sanctum, the presiding deity stands imposingly as Lord Adi Varaha, facing east. Uniquely, the Lord is depicted with his left leg resting on the head of the serpent king Adisesha, holding Goddess Komalavalli gracefully on his left lap. The outer walls of the central shrine are completely etched with ancient Tamil inscriptions recording the grants, land donations, and administrative details of ancient kings.

According to the temple's Sthala Purana, Sage Kaalava had 360 daughters and prayed deeply to Lord Vishnu to find suitable grooms for them. Answering his prayers, the Lord appeared as a handsome young Brahmachari (bachelor) and married one daughter every day for an entire year (360 days). Thus, he earned the name 'Nithya Kalyana Perumal' (The Lord of Daily Marriage).

On the final day, the Lord revealed his true divine form as Lord Varaha. He miraculously merged all 360 daughters into a single Goddess, Akhilavalli (Komalavalli Thayar), and placed her gently on his left lap. The name of the village, Thiruvidandhai, is derived from this very act: 'Thiru' (Goddess), 'Ida' (Left), and 'Endhai' (My Lord)—meaning 'The Lord who holds the Goddess on His left side'.

The temple is globally famous for its Marriage Pariharam (spiritual remedy). Unmarried individuals come here seeking the blessing of matrimony.

The traditional ritual involves purchasing two flower garlands. After offering them to the Lord, the priest returns one garland to the devotee. The devotee wears this blessed garland, performs a Pradakshina (circumambulation) around the temple corridor, and takes it home to keep safely. Once their marriage is finalized, the couple returns to the temple with the old garland to offer their gratitude to Nithya Kalyana Perumal.

The grandest festival is the Chithirai Brahmotsavam (held in April-May), which draws immense crowds. Another major and visually spectacular event is the Garuda Sevai, celebrated during the Tamil months of Aani, Aadi, Masi, and Panguni. Vaikunta Ekadasi is also observed with great devotion and traditional rituals.