Chola invasion of Kedah

The Tamil prasaśti of Virarajendra Chola records a naval invasion of Kadaram (modern Kedah in Malaysia) by the Cholas in 1068. Sources assert that the expedition was undertaken to help a Kadaram prince who had approached Virarajendra Chola for assistance in procuring the throne. The kingdom of Kadaram is believed to be the same as the Srivijaya empire although some scholars disagree.

Background
Another theory suggests that the reasons for the invasion was probably motivated by geopolitics and diplomatic relations. King Suryavarman I of the Khmer Empire requested aid from Rajendra Chola I of the Chola dynasty against Tambralinga kingdom. After learning of Suryavarman's alliance with Rajendra Chola, the Tambralinga kingdom requested aid from the Srivijaya king Sangrama Vijayatunggavarman.

Invasion
Malaiyur in malaysia, with "its strong mountain", has been identified with Malayu in today Jambi province in Batanghari river valley, where a strong principality flourished at that time. Other suggestion is the southern part of the Malay peninsula gets conquered by the cholas. Mayirudingam is believed to be the same as Ji-lo-ting listed by the Chinese writer Chau Ju-Kua among the dependencies of Sri Vijaya and is identified with the city of Chaiya in the centre of the Malay peninsula. The land of Ilangasoka (Langkasuka) mentioned in the inscriptions has been located on the east coast of the Malay Peninsula and is believed to be the same as the province of Ling-ya-sseu-kia mentioned in Chau Ju-Kua's list.Talaittakkolam is believed to be the same as Takkola mentioned by Ptolemy as a trading emporion on the Golden Chersonese, and identified with Trang or the modern-day city of Takuapa in the Isthmus of Kra. and at last Kadaram, All these cities weree conquered and subjugated by the Chola empire.

Aftermath
This dominance started to decline when Srivijaya were invaded by Chola Empire, a dominant maritime power of Indian subcontinent, in 1025. The invasion reshaped power and trade in the region, resulted in the rise of new regional powers such as the Khmer Empire and Kahuripan. Continued commercial contacts with the Chinese Empire enabled the Cholas to influence the local cultures. As Srivijaya influence in the region declined, The Indianized Hindu Khmer Empire experienced a golden age during the 11th to 13th century CE. The empire's capital Angkor hosts majestic monuments—such as Angkor Wat and Bayon. Many of the surviving examples of the Hindu cultural influence found today throughout Southeast Asia are the result of the Chola expeditions. {{cn span |text=Tamil colonization of the Malacca Straits seems to have lasted for a century. The Cholas left several inscriptions in northern Sumatra and the Malay peninsula. Tamil influence can be found in works of art (sculpture and temple architecture), it indicated government activity rather than commerce. Chola's grip on the northern Sumatra and the Malay peninsula receded in the 12th century — the Tamil poem Kalingatupparani of ca. 1120 CE mentioned Kulottungga's destruction of Kadaram (Kedah). After that, Kedah disappeared from Indian sources. {{cn|date=July 2024}}