Sri Hemaranganatha Perumal Temple (Thirunangur)

This is one of the eleven Thirunangur Divya Desams traditionally linked to Vishnu's pacification of Shiva's tandava, distinguished here by its golden association in both name and local legend. Temple tradition holds that Rama, after defeating Ravana and returning south, gifted a golden cow to a Brahmin residing at a nearby sage's ashram as an act of atonement for the killing of a Brahmin-descended king; the Brahmin is said to have used that gold to raise this shrine, giving it the enduring Tamil name Thirusemponsaikoil, "the temple made of gold." The Sanskritised Divya Desam name, Hemaranganatha, carries the same idea forward, joining "Hema" (gold) directly to Ranganatha.

The temple's festival deity is traditionally cast in Panchaloha, the five-metal alloy customary for processional Vaishnava images, and is known locally as Chemponarangar or Hemaranngar, names that keep the golden association alive in everyday temple practice rather than confining it to founding legend alone.

Temple tradition places this shrine among the eleven forms Vishnu assumed at Thirunangur when he calmed Shiva's grief-driven tandava, the shared legend recounted in full on the neighbouring Thirunangur temple pages. Layered onto that shared origin is the more specific local memory of Rama's gift of a golden cow to the Brahmin who is said to have built this shrine, preserved in its enduring Tamil name, Thirusemponsaikoil, distinct from the Sanskritised Hemaranganatha used in the wider Divya Desam tradition. Some accounts place the temple's earliest structure in the Pallava period of the 7th–8th century CE, with substantial rebuilding under the Cholas in the centuries that followed.

The sanctum sanctorum stands within the customary Dravidian sequence of antarala, ardha mandapam, and maha mandapam, the deity worshipped here in standing posture facing east. Above the sanctum rises a compact two-tiered stucco vimanam on a raised bhumidesam (base platform), known as the Vedha Vimanam ("the Vimanam of the Vedas") reinforcing the sense that this shrine is remembered locally as a seat of scriptural sanctity as much as a golden one.

This temple shares the Thirunangur cluster's Thai-month (January–February) Thirumangai Alvar Mangalasasana Utsavam, when festival deities from all eleven shrines are brought together on Garuda mounts.

Daily worship at Thirunangur-cluster temples such as this one customarily follows a four-fold rhythm (an early Ushathkalam, a mid-morning Kalasanthi, an evening Sayarakshai, and a closing Ardha Jamam) though exact timings and the number of daily poojas can vary by temple and should be confirmed locally. The processional festival image here, Chemponarangar, is brought out for archana on days tied to the golden-cow legend behind the temple's name.