Mahadevar Temple in Chengannur is one of the oldest and famous temple. It is a sprawling temple complex with a circular Sanctum. Lord Shiva and Parvathi Devi are the main investitures of this temple. There are two main Shrines in this temple. Lord Shiva facing East and Devi facing West. The main shrine is a conical copper plated one. Devi's main Idol is made with an alloy of five metals "Panchalokham". The other sub-investitures of the temple are Ganapathi, Lord Ayyappan, SreeKrishnan, Chandikeswaran, Neelagrivan, Ganga, and Naagar.
The Pancha Pandavas Temple
?Five temples in central Travancore region of Kerala - Thrichitat, Thiruppuliyoor, Thiruvaranmula, Thiruvanvandoor and Thrikkodithanam - are collectively called Pandava Temples. Legends of this temple are associated with Pandavas. After crowning Parikshit, Pandavas left for pilgrimage. They visited Kerala during their pilgrimage. In Kerala, each of them installed idols of Lord Vishnu on the banks of the Pampa and nearby places (Thrichittat - Yuddhishtra, Tiruppuliyoor - Bheema, Thiruvaranmula - Arjuna, Tiruvanvandoor - Nakula and Thrikkodithanam - Sahadeva) and offered worship. Malayali devotees believe that worship at all these five temples on the same day is especially meritorious. Devotees must visit Thrichitat Temple (in Chengannur Muncipality) first and then Thiruppuliyoor, then Thiruvaranmula, then Thiruvanvandoor and finally Thrikkodithanam temple. These temples are situated in Pathanamthitta, Alappuzha and Kottayam districts.
