Korkai, Poompuhar and Muchiri were well known as

Korkai, Poompuhar and Muchiri were well known as
  1. capital cities
  2. ports
  3. centres of iron-and-steel making
  4. shrines of Jain Tirthankaras

Solution

Korkai (Pandya), Poompuhar/Kaveripattinam (Chola) and Muchiri/Muziris (Chera) were the principal ports of Sangam-age Tamilakam known for trade with the Roman world.

Asked in: UPSC Prelims 2023

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