Sri Narayana Perumal Temple

Temple tradition holds that Ranganatha of Srirangam, travelling south to Srivilliputhur to wed the Alvar-saint Andal, halted for the night at this hillock, the name Thiruthangal itself derives from "thangal," meaning to stay overnight, making this one of the few Divya Desams whose very name records a specific narrative event in its founding legend rather than a deity's title or a place name.

The deity here is worshipped standing (Ninra Kolam) as Ninra Narayana Perumal, distinct from the reclining form found at journey's end in Srivilliputhur, a contrast pilgrims visiting both temples on the same route often note, reading the standing posture here as the deity paused mid-journey rather than settled.

The temple in its present form is traditionally credited to Devendra Vallabha, a Pandya king, and its two rock-cut cave shrines carry inscriptions dating from the 8th century CE, among the earliest surviving architectural evidence at any Divya Desam in this southern cluster, predating the freestanding Dravidian-style temple structures found at most neighbouring Nava Tirupathi sites by several centuries. The hillock itself, known as Thalagiri, appears to have been a site of rock-cut worship before later structural additions were built around and atop it.

The temple's most distinctive architectural feature is its setting: it stands on the Thalagiri hillock with two rock-cut cave shrines carved directly into the rock face, a form of temple architecture more commonly associated with early Pallava-era sites further north than with the Pandya country. Later structural additions were built up around these original cave shrines as the site's importance grew.

The temple's festival calendar follows the general pattern of Pandya Nadu Divya Desams, with additional local observances tied to the Ranganatha overnight-halt legend during the season when Srivilliputhur's own Andal-related festivals are celebrated nearby.

Daily worship follows the customary schedule of Pandya Nadu Divya Desams, with the climb to the rock-cut cave shrines forming a distinct part of the darshan experience here compared to ground-level temples.