Castes and Tribes of Southern India/Mannu
Mannu (earth). — A sub-division of Oddēs, who are earth-workers. Manti, which has also been returned by them at times of census, has a similar significance (earthen). Man Udaiyan occurs as a synonym of Kusavan, and Manal (sand) as an exogamous sept of Kāppiliyan, Man Kavarai is recorded in the Salem Manual as the name of a class of salt makers from salt-earth.