Nalam Tharum Naalayiram (நலம் தரும் நாலாயிரம்): This refers to the Naalayira Divya Prabandham, a collection of 4,000 Tamil verses composed by the Alvars. "Nalam Tharum" means "that which gives good" or "that which gives wellness." So, the title means "The Naalayiram that gives wellness." A book with this title, authored by Srirangakavi and published by Sri Indu Publications, is available for purchase. This work would likely be a selection of verses or a guide to the devotional benefits of reciting the hymns.