Dear Venkat It was during the period of Rajathi Raja Kulasekara Pandiyan the ruler of Thirunelveli killed Parakrama Pandiyan of Madurai and wants to become the King of whole of Pandya Kingdom.. Parakrama pandyas son Veera Pandyan seeks the assistance of Srilankan king who sends Ilangapura thandanayagan to chase Kulasekaran away and later pillages madurai and vicinity He is later joined by a even shrewder Jagathvijaya Thandanayagan.... Kulasegaran seeks the Help of Cholas.....
Cholas to chase the aliens out of thamil soil...come to the rescue of Kulasegara and send his regiments under Pallavarayar(s) and they do defeat the Lankan commanders and hang their head on the madurai fort...
This is the back drop of Kannimaadam by Sandilyan ( source NK Sastry: Cholas) and Solanila by Mu Metha
May be the authors glorify Cholas but both in these novels and Akilans Vengaiyin Mainthan The Chola Kings seem to forget their Local Rivalry with Panyas when it comes to restore the tamil dignity against others....
The Singala king Vijayabaghu was assisted by a Chola king to regain his crown is another story