Wikipedia
Porunaraatruppadai,(Tamil: பொருநராற்றுப்படை) is a Tamil poetic work in the Pathinenmaelkanakku anthology of Tamil literature, belonging to the Sangam period corresponding to between 100 BCE – 100 CE. Porunaraatruppadai contains 250 lines of poems in the Achiriyappa meter. The poems were written by the poet Mutathaamakkanniyaar in praise of the Chola king Karikala Chola. Porunaraatruppadai belongs to the Pattupattu collection and follows the Arruppadtai style, a device used by most of the books in the Pattupattu collection.
Arruppatai poems read like travelogues in which poets who were returning with gifts received from a king, encourage other poets to do the same by describing in glowing terms the king and his country. This gives the opportunity to the poet, among other topics, to describe in great detail the natural beauty, fertility, and resources of the territory that has to be traversed to reach the palace of the patron.