The four copper plate inscriptions that detail reign, deeds of King Rajendra Chola 

Among the most valuable records from Rajendra’s time are four sets of copper plate inscriptions discovered at different locations. The Tiruvalangadu Copper Plates, the Karanthai Copper Plates, the Tirukkalar Copper Plates, and the Esalam Copper Plates highlight the Chola lineage, temple endowments, and military expeditions

India