Nachiyar Thirumozhi is a Divyaprabhandham written by Goddess AndaL. It consists of 143 Hymns.The great Poorvacharya (preceptor) Periyavachan Pillai has written a commentary
(Explanation for the 143 Hymns) . “Sudarsanar ” Sri.S.Krishnaswamy Iyengar fondly known as Puthur Swamy ( aka Abhinava Periyavachan Pillai) has written a simplified commentary .It is known as Vivaranam. This book contains both Vyakhyanam and Vivaranam.