top. Ancient and historical Thiruchengodu is crowned with Mummurthies named Arthanareeswar , Chengodu Velan and Athikesava Perumal. The ancient Arthanareeswar temple was mentioned in the Tamil work Silapathikaram as Neduvelkunru. The average annual rainfall is around 950mm. The altitude is about 150-200 metres msl. The Temples Ardhanareeswarar, one of the 64