Wikipedia
Arjuneswarar
Arjuneswarar Koil is situated on the banks of Amaravathi River in Kadathur. This has the tallest Swayambhu Lingam in the Kongu Region. Swayambhu Lingams manifest on its own i.e. not made by man. They appear suddenly or mysteriously without any human efforts.
The main deity, Moolavar in this temple is Arjuneswarar. The alternate names for the Moolavar are Marudheesar, Marudhudaiyar and Marundheesar. The consort of the main deity is worshiped in the name of Gomathi Amman.