The last veda called the Atharva Veda is a collection of magic spells and charms to ward off the evil spirits and diseases. It is considered a non-Aryan work and is the latest addition to the Vedas in later Vedic age.
The famous Chola king Karikala of the Sangam age is credited with constructing a dam on the Kaveri river. It is considered to be the earliest dam in the country.
EXAMIANS