Agastya in the Tamil Land by K. N. Sivaraja Pillai first published in 1930.

No tradition is so widespread throughout the length and breadth of the Tamil country as that concerning sage Agastya and his numerous exploits. Of all the mythic, semi-historic and historic personages of the Aryan annals, who have figured in South Indian History, Agastya has occupied the foremost place and secured the largest homage of the cultured and the masses alike. He meets us from the very start of Aryan History, being a composer of certain hymns of the earliest of the Vēdas, the Rg Vēda. Still he seems to have been not included amongst the seven holy sages, the Prajāpatis, or the progenitors of the human race.