Chadayamangalam - Chadayamangalam – The Rock City Land of Cashews Jackfruit Pepper Coconut Tapioca Areca Nut amp Rubber Plantation Chadayamangalam named in remembrance of Nedila Paranthaka Nedumchadayan who ruled Chadayamangalam between 6th and 7th century AD The place is believed to have derived its current name from its old name of Jatayumangalamwww.chadayamangalam.com