Sangu Theertham

Sangu Theertham is a sacred temple tank located at the foothills of Vedagiri Hill in Thirukazhukundram, Chengalpattu District, Tamil Nadu. Situated adjacent to the Vedagiriswarar Temple, it is one of the 12 theerthams of the town and is revered for its purifying waters. The tank is famous for the legend that a conch (sangu) appears once in 12 years.

Visitors can expect a large, rectangular sacred water tank surrounded by stone steps and mandapams at the base of Vedagiri Hill, next to the Vedagiriswarar Temple complex. The setting is calm and pilgrim-focused, with devotees performing rituals and taking holy dips during festivals. The tank is open-air with views of the hill temple above, small shrines and shops nearby, and a predominantly religious atmosphere.

Sangu Theertham is integrally linked to the Vedagiriswarar Temple, an ancient Shiva temple on Vedagiri Hill traditionally associated with Pallava and later Chola patronage. The tank has served for centuries as the temple's sacred water source for rituals and festivals. Its name and fame derive from the long-standing tradition that a conch emerges from its waters once every 12 years, an event documented in local temple lore.

The tank is considered highly sacred by devotees of Lord Shiva. Bathing in its waters is believed to be purifying and meritorious, especially during temple festivals and auspicious days. As one of the 12 theerthams of Thirukazhukundram, it holds important religious significance in Shaivite tradition and is a central part of pilgrimage to Vedagiriswarar Temple.