After the invasion of Rajendra Cola the Srivijaya kingdom has hardly any political control over the Malay Peninsula. Until the thirteenth century Tambralinga was a pivot in politics of the southern Bay, also having asserted its independence on the century.
Dharmaraja Chandrabhanu was a king of the Tambralinga which active period 1230-70. In 1247 he sent an expedition to Sri Lanka with the ostensible aim of obtaining a Buddhist relic and controlled the northern part of the islands.
Dharmaraja Chandrabhanu spent more than 30 years in the conquest of Sri Lanka.
But its move to take over the whole island was frustrated by the Pandyans from south India who attacked Tambralinga in alliance with Ceylon. In 1270 Chandrabhanu attacked Sri Lanka again and was defeated by the Pandays badly enough that Tambralinga had not recovered when attacked by the Siam twenty years later.
Its rapid rise to prominence since the 13th century till beginning of 14th century, Tambralinga had occupied the entire Malay Peninsula and become one of the dominant Southeast Asian States.
By the end of the 14th century, Tambralinga had become part of Siam named Nakhon Si Thammaraj.
Tambralinga attacks Sri Lanka (1247)
