The Chola fleet sacked Srivijaya’s ports and took its king captive.
01The ports in the inscription
Rajendra’s meykirti from his fourteenth year on lists what the fleet took: Kadaram, with its king Sangrama Vijayottungavarman and his elephants and treasure; the jewelled Vidyadhara-torana, the war gate of his city; Srivijaya itself; Pannai, Malaiyur, Mayirudingam, Ilangasokam, which is Langkasuka, Mappappalam, Mevilimbangam, Valaippanduru, Talaittakkolam, Madamalingam, Ilamuri-desam in north Sumatra, Manakkavaram, the Nicobar islands, and Kadaram again. The list follows the coasts of Sumatra and the Malay peninsula like a sailing route.
02Why the Cholas sailed
Srivijaya controlled the strait through which the trade of the Coromandel coast reached China. Relations had been friendly: Rajaraja had granted a village for a Buddhist vihara built at Nagapattinam by a Srivijaya king, recorded in the Larger Leiden plates. What broke the friendship is not recorded; the likeliest cause is the strait and its tolls. After the raid the Cholas did not stay, but Chola embassies went to China, and Tamil merchant guilds worked these ports for two centuries more.

It showed a navy from Bharat striking across the open sea, and the Bay of Bengal was for a time a Chola lake.

