Complex sentence: The two Tamil Jain and Buddhist epics of "Kundalakesi" and "Manimekalai" describe the islet of "Manipallavam" of Nāka Tivu/Nadu, this islet of the Jaffna peninsula, from where merchants came to obtain gems and conch shells.
Split into simpler sentences: The two Tamil Buddhist epics of Kundalakesi and Manimekalai describe the islet of "Manipallavam" of Nāka Tivu/Nadu which is identified with this islet of the Jaffna peninsula. Manimekalai describes the ancient island of Manipallavam from where merchants came to obtain gems and conch shells.