Is udayar caste and agamudayar same same?

No agamudayar and udayar are different caste agamudayar comes under mukkulathor and udayar comes under parkavakulam, but there is some myth that they came from same lineage (malayaman lineage) because udayar (malayaman, and nathaman) moopanar (surthiman) these udayar, moopanar, nainar these three were came parkava lineage, deiveegan malayaman udayar is ancestor of these caste, agamudayar also claims that they came from malayaman caste they claimed that udayar also part of agamudayar community