. Kadayam comprises South Kadayam, Keezha (East) Kadayam and Mela (West) Kadayam.
Gifted with rich land and water resources, Kadayam is known for its quality rice cultivation, lime orchards, floriculture- primarily roses and ‘thaazhambu’(a fragrant cactus flower) and a cottage industry of rose water.
Legend has it that the presiding deity of the area, Goddess Kalyani Amman could not tolerate the noise created by the inhabitants surrounding her. She pulled out a bracelet (‘kadagam’) that she was wearing and threw it to a distance and asked the inhabitants to go and reside round the spot where the bracelet fell. Thus this place was known as Kadagam, which later came to be known as Kadayam. The temple of Goddess Kalyani Amman is around 3 km from the village outskirts. Kadayam has great association with mythology and appears in different names in historical records, such as, Valaisai, Srikailaasam, Konaadu Vikramapaandiyanallur and Vilvavanam.