The Kalabhra dynasty, also called Kaḷabrar, Kaḷappirar, Kallupura or Kalvar, were rulers of all or parts of Tamil region sometime between the 3rd century and 6th century CE, after the ancient dynasties of the early Cholas, the early Pandyas and Chera. Information about the origin and reign of the Kalabhras is uncertain and scarce. It is believed by historians that the Kalabhras belonged to the Vellalar community of warriors who were possibly once the feudatories of the Cholas and the Pallavas. Their proposed roots vary from southeast region of modern Karnataka, Kalappalars of Vellalar community, to Kalavar chieftains. This age is generally called "The Augustan age of Tamil Literature", in a 1922 book by the name "Studies in South Indian Jainism" written by M. S. Ramaswami Ayyangar and B. Seshagiri Rao. The Kalabhra era is sometimes referred to as the "dark period" of Tamil history, and information about it is generally inferred from any mentions in the literature and inscriptions that are dated many centuries after their era ended.

The Chera dynasty, was a Sangam age Tamil dynasty who unified various regions of the western coast and western ghats in southern India to form the early Chera empire. The dynasty, known as one of the Three Crowned Kings of Tamilakam alongside the Chola and Pandya, has been documented as early as the 4th to 3rd centuries BCE. Their governance extended over diverse territories until the 12th century CE.