How did Tamil, Telugu, Kannada and Malayalam arise from one Dravidian language family?
Telugu, Kannada, Malayalam and Tamil are related languages belonging to one Dravidian family. Together with another 20 languages, they have evolved from a common ancestral language labeled as Proto-Dravidian.
EARLY SOUTHERN INDIANS
Early Indians were the aboriginal tribes, who spoke various Austro-Asiatic languages. They were the original hunter-gatherers