Nalayira Divya Prabandham Vyakyanam [2K]

are not merely linguistic translations; they are theological treatises that establish the doctrine of Ubhaya Vedanta

: Although Nathamuni initiated the lineage, the formal tradition of writing exhaustive commentaries flourished later. Pillan , a disciple of Ramanuja, wrote the first commentary on the Tiruvaymoli (the 1,000 verses by Nammalvar) titled "Arayirappadi" (6,000 units), modeled after the length of the Vishnu Purana. Key Commentators (Vyakyana Karthas) nalayira divya prabandham vyakyanam