Rajaraja was evidently not only weak, but incompetent. Pandyan inscriptions of the period state that he deliberately broke the terms of the treaty with his Pandyan overlord and refused to pay his tribute. This led to a punitive invasion by the Pandya forces. The Pandya army entered the Chola capital and Rajaraja took flight. The Kadava
Kopperunchinga I who had once been a Chola feudatory had begun to exercise their independence. Kopperunchinga wanted to gain some ground in the confused state of affairs. Muttiyampakkam is to be identified with the present village of Muttumbaka of the Gudur taluk ofNellore district, as has ... the Kadava chieftain Kopperunjinga who had imprisoned the Chola emperor Raja Raja-Ill (1216-1257 A. D.). He caught and imprisoned the fleeing Chola king at
Sendamangalam.
Hoysala aid The Cholas made alliances with the Hoysalas from the time of Kulothunga Chola III. Rajaraja III married a sister or a daughter of
Vira Narasimha II. So when the Hoysala king Narasimha heard of the abduction of Rajaraja, and the subsequent devastation of the Chola country by Kopperunchinga's men, he immediately sent his army into the Chola country. The Hoysala army engaged Kopperunchinga's troops and sacked two of his towns. When the Hoysala army was preparing to lay siege to the Kadava capital of Sendamangalam, Kopperunchinga sued for peace and released the Chola king. While his generals were attacking the Kadava chieftain Kopperunchinga, the Hoysala king Narasimha himself led his troops against the Pandya. A decisive battle took place between the Pandya and the Hoysala troops near Mahendramangalam on the banks of the river Kaveri and the Pandya army was defeated.
Conflict with the Hoysalas Vira Narasimha II, a ruler of the
Hoysala dynasty, is associated in some historical accounts with conflicts against Tikka I, a Telugu Chola ruler and subordinate of Rajaraja III of the Chola dynasty. According to these accounts, a Hoysala ruler—identified with Narasimha II on chronological grounds—was defeated and killed during a campaign led by Tikka I around 1239–1240 CE. A
Chola inscription from Jambai (dated to 1239 CE, in the 23rd regnal year of Rajaraja III) refers to a military expedition of Nayanar Gandagopala (Tikka I), and has been interpreted by some historians as indicating a victory in which a Hoysala ruler was slain ==State of the Chola kingdom==