Gabbilam - Vignapthi (Audiobook)

Ever since I read parts of it in my 10th grade Telugu textbook, I always wondered about what prompted Gurram Joshua to name his khanda kavyam, Gabbilam, that way. Many years later, I finally had the opportunity to learn why. It was put so nicely by Joshua himself in the book's preface that I would like to share it with you all in audio format. I am not very good at reading these books, and would appreciate it if any of you can provide a better rendition of it..

Gabbilam - Vignapthi

BTW, Gabbilam was subtitled thusly:

"gasari busakoTTunAtani gAli sOka
nAlgu paDagala haindava nAgarAju"

And the cover work depicts a four-headed snake (nAgarAju) angrily hissing at a skinny half-naked man dressed only in loin-cloth.

I am guessing that Joshua was referring to the Hindu caste system with its four casts as the "nAlgu paDagala haindava nAgarAju" while the skinny man probably represented the untouchables. What do you think?