Kaviyoor Mahadeva Temple is also known as Thrikkaviyoor Mahadeva Temple. The main deities worshipped in the temple are Lord Shiva and Lord Vishnu. Idols of Ganapathy, Maharshi and Dwarapalakas are also present in the temple premises. The holy shrine falls under the Thiruvalla Group of Temples. River Manimala in the temple surroundings makes the environment serene and spiritual. Kaviyoor Mahadeva Temple is declared as a heritage site owing to its immense historical value.
Historians date the Kaviyoor Mahadevar Temple to as early as the eighth century AD owing to its resemblance to the Pallava style of architecture.
Festivals observed in Kaviyoor Mahadevar Temple are:
The main offering at Kaviyoor Mahadevar Temple is Aval Nadyam and Vada Mala.