During the reign of Rajaraja Chola I and his successors Rajendra Chola I, Virarajendra Chola and Kulothunga Chola I the Chola armies invaded Sri Lanka, the Maldives and parts of Southeast Asia like Malaysia, Indonesia and Southern ThailandBetween 2 Oceans (2nd Edn): A Military History of Singapore from 1275 to 1971 by Malcolm H. Murfett, John Miksic, Brian Farell, Chiang Ming Shun p.16 of the Srivijaya Empire in the 11th century. Rajaraja Chola I launched several naval campaigns that resulted in the capture of Sri Lanka, Maldives and the Malabar Coast.South India by Stuart Butler, Jealous p.38 In 1025, Rajendra Chola launched naval raids on ports of Srivijaya and against the Burmese kingdom of Pegu.Asia: A Concise History by Arthur Cotterell p.190 A Chola inscription states that he captured or plundered 14 places, which have been identified with Palembang, Tambralinga and Kedah among others. A second invasion was led by Virarajendra Chola, who conquered Kedah in Malaysia of Srivijaya in the late 11th century.History of Asia by B.V. Rao p.211 Chola invasion ultimately failed to install direct administration over Srivijaya, since the invasion was short and only meant to plunder the wealth of Srivijaya. However, this invasion gravely weakened the Srivijayan hegemony and enabled the formation of regional kingdoms. Although the invasion was not followed by direct Cholan occupation and the region was unchanged geographically, there were huge consequences in trade. Tamil traders encroached on the Srivijayan realm traditionally controlled by Malay traders and the Tamil guilds' influence increased on the Malay Peninsula and north coast of Sumatra.
