Do you know that all six volumes of dheivathin kural has been typo-error-corrected and is available in https://dheivathinkural.wordpress.com. As mentioned earlier, Sri Chandru and Sri Karthi Nagarathnam has been tirelessly working on this. Sri Raman mama has done his job of creating pdf version of these contents.
They are going to start working on the 7th volume soon – may be they already started.
Check this out!
Hara Hara Sankara Jaya Jaya Sankara!