Saka Era (185 BC-320)

It is often associated with the rise of the Saka dynasty, a group of Central Asian nomadic people known as the Indo-Scythians. The period saw the invasion of several tribes (Bactrians, Parthians, Sakas & Kushans), opening of Central Asia for trade, issuance of gold coins and introduction of the Saka era. There was also trade with the Roman Empire.
65 BC - 250 The southern part was ruled by Cholas, Cheras and Pandyas. This period is known for construction of Ajanta and Ellora cave temples, Sangam literature, and arrival of Christianity to India.