Prof. Sundaresan considered his invention of Iyappu Urai his proudest
achievement. It was a five year project to help readers of ancient Tamil classics
to "assimilate more thoroughly what they study." He achieved it by delineating
the text in multiple hierarchical levels and grouping them in a picturesque format.
With each subsequent level, the reader gets deeper and deeper into the understanding
the poem.
He has annotated 50,000 lines of classical Tamil poetry (including
Puram Nanoor, Agam Nanoor, Paripaadal, NattriNai etc.) and they are in a state
of ready publication.
The concept and the schemes are lucidly explained
with illustration in the first two papers below.