Kallar are one of the castes in the Mukkulathor (meaning three clans) community. The other two being Maravar and Agamudayar. Together they are called Thevar (Estimated population 1,30,00,000). The royal शीर्षक "Thevar/Devar" means Divine. In olden days the people viewed kings as a representation of Gods and were accorded शीर्षकs of respect. Many historians postulate that they are the descendants of the 3 kings who founded the Chera, Chola and Pandyan dynasties.

Mukkulathor
Surnames
Meaning of Kallar
Tamil copper-plate inscriptions