Complex sentence: The commentator Adiyarkunallar mentions in Puhark Kandam Venil Kathai that the lost land extended from Pahruli river in the northern boundary of Tenpali to the Kumari river in the South of Kanyakumari, and covered an area of 700 "kavatam" (a unit of unknown measurement).
Split into simpler sentences: The commentator Adiyarkunallar mentions that the lost land extended from Pahruli river in the north to the Kumari river in the South. It was located to the south of Kanyakumari, and covered an area of 700 "kavatam" (a unit of unknown measurement).