Which of the following was not one of the ruling dynasties of South India in the Sangam Age?

The Pandyas were one of the three ancient Tamil dynasties (Chola and Chera being the other two) who ruled the Tamil country from pre-historic times until the end of the 15th century. They ruled initially from Korkai, a seaport on the southernmost tip of the Indian peninsula, and in later times moved to Madurai.