Thirukkural Vilakkam - 3 vol book - was published in early 1920s by Krishnampettai Kuppusamy Mudaliyar

Vol 1 covering Arathuppaal was published in 1924 and Vol 2 (Porutpaal), Vol 3 (Kaamathuppaal) were published in 1926.

I am not able to recollect the source from where I downloaded. Thanks to the original uploaders for their untiring effort.

Mediafire link -

Note: These 3 books have been re-printed as a 2 vol edition (in 2017) by Sivalayam J Mohan's publication team.

- Diwakar