The invasion of Greeks led to the reciprocal influence.
In India, after Alexander’s death, his general Seleucus Nicator, succeeded to the region across north-western India as a ruler and consequently diplomatic relations were established.
The Seleucid Empire got weakened and as a result, following a couple of his successors, Menander, the best known of Indo-Greek Kings ruled the empire.
The Indo-Greek kingdom was ousted by the Sakas followed by the Parthians and the Kushanas. The Sakas appointed kshatraps or provincial governors to administer the territories.
Rudradaman was the most famous Saka ruler. After him, the Sakas were displaced by the Parthians who were succeeded by the Kushanas.
The best known of the Kushanas was Kanishka who was an ardent follower of Mahayana form of Buddhism. Gandhara art developed during his period.
Buddhist philosophers such as Asvaghosha, Parsva, Vasumitra and Nagarjuna were patronised by Kanishka.
In South India, Satavahana kingdom was established in the first century CE. Muvendar (Chola, Chera and Pandya) were dominant in this region.
Trade developed between the Tamil country and Rome. Puhar became an important port on Coramandel coast. Yavana merchants lived in port towns.
These centuries were not a period of political stability. Yet, expansion of maritime trade led to economic growth and prosperity.