Katesar
Katesan is a Tamil caste found in Tamil Nadu of India. They are chiefly found in the district of Thirunelveli in Tamil Nadu.
They have seven exogamous sub-divisions known as Keelai. In the war between the Idangai and Valangai, the Katesans sided with the Kammalar who belonged to the Idangais. The Katesans lost the battle with only seven men standing. Each men took wife from different castes and thereby forming a subdivision. The following subdivisions are Kuttini keelai, Nēttali keelai, Kavadi keelai, Nayinan Chakravarthi keelai, Thomba Puluvan keelai, Attukkutti keelai and Tachilai keelai.
In the Katesan society, the maternal uncle's responsibility is more than the parents.
These are found in big temple,tanjavur and in other places. "Perumal Patamkatti " dating 900 AD was found in Kanyakumari.