Sri Venni Karumbeswarar temple is located in the village named Koil Venni, in the district of Tiruvarur, in the state of Tamil Nadu in South India. The primary deities of this temple are Venni Karumbeswarar – Triambakeswarar Rasapureeswarar and Venni Nathar (Lord Shiva) and his consorts are Azhagia Nayaki – Soundara Nayaki.
The holy tree of this temple is Nandia Vartham. The holy waters of this temple are Surya and Chandra Theerthams. The agamam or pooja of this temple is known as Kamya Agama. This temple is nearly 1000-2000 years old in this region. The historical name of this place is Tiruvenni.
According to the local legends and scholars, “The temple is praised in the Thevaram hymns of Saints Tirunavukkarasar and Tirugnanasambandar. This is the 102nd Shiva temple on the southern bank of Cauvery praised in hymns.” The chief festivals of this particular temple are 9 day Navrathri celebrations in September-October; Chitra Poornima in April-May; Panguni Uthiram in March-April; Vaikasi Visakam in May-June; Tirukarthikai in November-December; Aani Tirumanjanam in June-July; Tiruvadhirai in December-January, Masi Magam in February-March and Thai Poosam in January-February are celebrated in the temple.
On 2, 3 and 4th day of Panguni-March-April, the rays of Sun directly falls on the Lord. It is to be largely noted that Lord in the temple is a swayambu murthy. The temple is open from 8.00 a.m. to 12.00 a.m. and from 5.00 p.m. to 8.00 p.m for the Hindus.
Other deities in the temple complex are Gajalaxmi, Bairavar, Navagraha, Murugan, Vinayagar, Dhakshana moorthi, Lingothbavar, Narthana viayagar, Durgai and Kosta Moorty.