Kulothunga made his formal submission to Pandyan rule in 1217 CE at
Pon Amaravathi, ending nearly three centuries of
Chola domination in the Tamil country and other major parts of South India. This was the beginning of the Pandyan revival and the second Pandyan empire was born and between 1215-1345 AD the
Pandyas were the paramount power in South India. During the following five decades from 1215 AD, following their defeat to the
Pandyas, the
Cholas experienced a constant decline in terms of extent of territory, political importance, prestige and remained largely subordinate and subservient to the
Pandyas. The
Cholas also became dependent on the
Hoysalas with whom they had marital relations.
Kulothunga Chola III died in 1218 CE, shortly after his defeat by Maravarman Sundara Pandyan and his son successor
Rajaraja Chola III proved to be an incapable and incompetent ruler under whose rule the Chola kingdom hurtled from one ignominy to the other, and the process of its decline hastened. In 1225 CE Sundara Pandyan defeated and drove away a company of Odda (
Oriya) soldiers who had invaded the Chola heartland and occupied
Srirangam. He allied himself with the
Kadava chieftain
Kopperunchinga I against the Cholas and Hoysalas. After the defeat and capture of
Rajaraja Chola III at Tellaru in 1231 CE by Kopperunchinga,
Vira Narasimha II intervened decisively against the Kadava-Pandiyan alliance by sending an army under his generals Appanna and Goppayya. Kopperunchinga was defeated and Raja Raja Chola III was restored to Chola throne in 1231 CE. While his generals were moving against Kopperrunchinga, Narasimha himself defeated Sundara Pandiyan at Mahendramangalam on the banks of
Kaveri in 1231 CE. Sundara Pandyan had to acquiesce in the restoration of Raja Raja. After Mahendramangalam, peace was made between the warring Chola, Hoysala, Kadava and Pandyan kingdoms and sealed by dynastic marriages. ==Legacy and titles==