[5] He was also the commander of the Chola infantry that fought in Sri Lanka in the days of Rajaraja l. The territory under his authority was known as 'Vallavaraiyanadu', and occasionally 'Brahmadesam'.

Along with her great-aunt Sembiyan Mahadevi, Kundavai brought up her nephew, Rajendra I, who was the son of Rajaraja I and Thiripuvana Madeviyar, princess of Kodumbalur.

[8] She built a hospital after her father named Vinnagar athura salai at Thanjavur and donated extensive lands for its maintenance.

Until the third year (of the reign) of Ko-Parakesarivarman, alias the lord Sri-Rajendra-Soradeva,-Arvar Parantakan Kundavaiyar, (who was) the venerable elder sister of the lord Sri-Rajarajadeva (and) the great queen of Vallavaraiyar Vandyadevar gave-..One sacred girdle (tiruppattigai), (containing) ninety-seven karanju and a half, four manjadi and nine-tenths of gold.

[11][16][17] ..run-tiru-amudu sëd-arulavaum ăga nellu padin kalam-āga ōrādaikku nellu nūrru irubadin kalamum udaiyār sri-Rājarājadēvarkku mun pirand-arulina sri ālvār sri-Kundavai Pirāttiyār pirand-arulina avitta-tirunālāl tingal oru nāl tiru-vilā elund-arulavu.

Uniquely for her era, where royal women were used to forge alliances, Kundavai's father allowed her to exercise her free will, whereupon the princess resolved to stay in the Chola kingdom all her life.

Esteemed throughout the Chola realm for her taste and learning, Kundavai was requested to look after the daughters of other royal clans, tutoring them in art, music, and literature.