Nalgur Velviyar

Nalgūr Vēlviyār (Tamil: நல்கூர் வேள்வியார்) was a poet of the Sangam period to whom verse 21 of the Tiruvalluva Maalai.

Biography
Nalgur Velviyar was a poet belonging to the late Sangam period that corresponds between 1st century BCE and 2nd century CE. He hailed from the town named Nalgur.

View on Valluvar and the Kural
Nalgur Velviyar has authored verse 21 of the Tiruvalluva Maalai. He opines about Valluvar and the Kural text thus:

They say that Siva is the patron of North Madura, but this poet who pours out instruction in honeyed words with a parental solicitude, is the patron of South Madura abounding with water.