Since I cannot provide direct downloadable files, here are reliable online resources where you can listen to the hymn and find further texts:
Manthiramavathu Neeru Thevaram Theerthenaam Tapasam Siddha Samaadhi Mootham Thadathaa Shaasanaam manthiramavathu neeru thevaram lyrics in english link
It represents the ultimate reality that remains when all worldly desires are burnt away. Since I cannot provide direct downloadable files, here
: Bookmark Thevaaram.org and Project Madurai . They are the most reliable, non-commercial sources for the complete English lyrics. manthiramavathu neeru thevaram lyrics in english link
When you locate the hymn, look for the line “Manthiramavathu Neeru” in the English column; most translations render it as “The water like a spell” or “The magical water.”