Rahu, like his counterpart Ketu, has a fixed devotional address within the Navagraha temple circuit of the Kaveri delta in Tamil Nadu: the shrine at Thirunageswaram, near Kumbakonam, built specifically to address the astrological influence of the ascending node. The temple's presiding image shows Rahu with a human torso and face merging into a serpent's coiled lower body, a form distinct from South Indian depictions of him as a disembodied head alone, and the site's iconographic program associates the shadow planet closely with naga, snake, imagery generally, reflecting an old and widespread Indian association between eclipses, serpents and the swallowing of light.
Devotees visiting as part of the full nine temple circuit typically address Rahu's shrine seeking relief from sudden setbacks, unexplained anxiety, professional obstruction or difficulties attributed to an afflicted node in the birth chart, treating him as the planet most associated with disruption arriving without visible warning. The temple's continued function as an active pilgrimage site, drawing worshippers from across South India specifically for astrological remedy rather than general devotion, shows how a myth explaining the mechanics of eclipses was translated, over centuries, into a standing institution of ritual practice addressed to a body that, astronomically speaking, occupies no fixed place in the sky at all.