ancient South India, Korkai, Poompuhar and Muchiri , UPSC PRELIMS 2023

With reference to ancient South India, Korkai, Poompuhar and Muchiri were well known as

        (a)   capital cities

        (b)   ports

        (c)   centres of iron-and-steel making

        (d)            shrines of Jain Tirthankaras

ANS. B