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It is famous for the ancient Sri Krishnaswamy temple which originated in the presence of Bhagavan Sri Krishna Himself. One of the largest power plants in Kerala, run by the National Thermal Power Corporation, is located near Evoor. The climate is tropical wet, with heavy rain in the monsoon season.
Evoor Major Srikrishnaswamy temple of Travancore Devaswom Board, is one of the most important 26 Mahavishnu shrines. It is linked to ‘Khandava-dahanam’ (burning of Khandava forest), described in Mahabharata . The remains of burnt trees being widely found here, confirm this. Further evidence are, nearby ‘Mannarasala’ and ‘Pandavarkavu’ temples in this part of Onattukara .
The great Kanva Maharshi (one of the Saptarshis), had been living in this area. ‘Kannamangalam’ (Kanva-mangalam) is nearby. His ‘ Ashrama ’ (hermitage) later became a temple. Evoor Krishnaswamy’s yearly ‘Araattu’ (ceremonial bath) is held in this temple’s tank.