If not this grant was explored, we would have not known most of happening during dark period (as mentioned by historians) and Kalappirar.
Nedunjadaian issued the Velvikkudi grant and was donor of that village to the descendents of the original donees. Much of the early history of the Pandyas too, could not have been peiced together but for this informative and lengthy document.
Long ago, the Sangham Oandyan King Palyagalasalai Mudukudumip Peruvazhudhi granted a Velvikkudi (Brahnim Village - tax free) to a brahmin KoRkai Kizhaan NarkoRRan. When the Kalabhras took over the Tamil country, they destabalised this charity; then centuries later, when Parantaka Nedunjadayan became King of Madurai, one Narasinghan, a descendant of earlier KoRkai Kizhaan represented the King his claim to the Village. The King reendowed the descendent of the original; and on the Velvikkudi copper plates, the new grant was inscribed with unusually full description of the King's acheivement.
The grants were issued in the third year of Nedunjadaiyan.
When completely read all the inscriptions of Velvikkudi plates, Kadungon, the first revived King of Pandya appeared in the plates. He who conquered the Kalappiras.
For people who do research on Pandya, the Velvikkudi grant was goldmine.