[1] Rajendra's inscriptions laud him as the "cunning hero, who killed Rajaraja after making him wear the double crown for three years".

During the period of Rajaraja III, the Hoysalas sided with the Cholas and defeated the Kadava chieftain Kopperunjinga and the Pandyas and established a presence in the Tamil country.

In the ensuing wars for supremacy, he emerged as the most victorious ruler and the Pandya kingdom reached its zenith in the 13th century during his reign.

Jatavarman Sundara Pandya first put an end to Hoysala interference by expelling them from the Kaveri delta and subsequently killed their king Vira Someswara in 1262 AD near Srirangam.

He then marched up to Nellore and celebrated his victories there by doing the virabisheka(anointment of heroes) after defeating the Kakatiya ruler, Ganapati.