At Karamadai, a place near Mettupalayam there lived people by the name " Thottiyars ". Karamadai got its name from the abundance of Karai trees and Karai Cows in this area at one point in time. The Thottiars were traditionally herdsmen. One of the Thottiya had some (Karai Pasu) cows in his cattle. At the end of everyday, he would milk them and found one of them to be dry inspite of feeding well. He then watched this cow and found out one day that it had been shedding milk into a Kaarai bush, the thottiya became very furious and struck the bush with his axe and immediately heard a loud noise from the bush and there appeared to be some bleeding from the bush. The Thottiya lost his eyesight at this moment and people knowing this rushed to the spot and found a Suyambu Lingam inside the bush. People realising that this was divine worshipped the Suyambu and the lord restored the eyesight for the Thottiya. The Lord appeared in the dream of thottiya and told him that he will appear to the people if adorned with " Sandana Kaapu", as the people performed the ritual, the Lord appeared to the people and graced them in the form of a Kshathirya (Warrior). The scar of the axe is said to appear on the top portion of the Suymabu even to this day.