Sri Neelamega Perumal Temple (Karvaanam)

Thirukkarvaanam's most distinctive devotional feature is its unusually generous provision for the goddess: the shrine maintains not one but two separately named Thayar sanctums within the same precinct, Kamalavalli Thayar and Aranavalli Thayar, an arrangement rare enough among the 108 Divya Desams that it is often the first thing local guides point out to visitors. The name Neelamega (literally "blue-black cloud") situates the deity's iconography within the wider Tamil devotional tradition of comparing Vishnu's complexion to a monsoon rain cloud, a comparison threaded through the Naalayira Divya Prabandham's poetry for Vishnu temples across the Tamil country.

The alternate name Kaarvaanam itself carries this same cloud imagery a step further: "kaar vaanam" denotes the dark, rain-bearing clouds of the monsoon sky, and temple tradition holds that just as such clouds pour rain on all beings without discrimination, Kalvar Perumal here blesses every devotee who approaches him without judgment or preference, a reading that gives the shrine's very name a moral as well as poetic dimension.

As one of four Divya Desams sheltered inside the Ulagalantha Perumal Temple complex, Thirukkarvaanam shares in the complex's considerable antiquity, which historian R. Nagaswamy regards as the oldest surviving temple structure in Kanchipuram, with an inscription dated to 846 CE under the Pallava king Nandivarman III and continued royal endowments recorded through the Chola, Vijayanagara and Madurai Nayak periods.

Thirukkarvaanam's own precinct sits within the wider Ulagalantha Perumal complex, distinguished by its twin Thayar sanctums alongside the main Neelamega sanctum, a slightly more elaborate footprint than the complex's other constituent shrines, though sharing the same outer Dravidian-style courtyards and boundary walls.

Like the other Divya Desams within the Ulagalantha Perumal Temple complex, Thirukkarvaanam's festival calendar follows the wider complex's observances (including Brahmotsavam and the Chithirai chariot festival, when the complex's processional deities are taken out together) along with Vaikunta Ekadashi and the general Vaishnavite calendar shared across Kanchipuram's Vishnu temples.

Most pilgrims take in Thirukkarvaanam's twin-Thayar sanctum as part of a single visit to the Ulagalantha Perumal complex, alongside its three sister Divya Desam shrines under the same roof. The presence of two named consort shrines, Kamalavalli and Aranavalli, means a darshan here typically involves paying respects at both Thayar sanctums in addition to the main Neelamega Perumal shrine.