Madurai Tamil Koothan Nagan Devanar

Nagan Devanar, known in full as Madurai Tamil Koothan Nagan Devanar (Tamil: மதுரைத் தமிழ்க் கூத்தன் நாகன்தேவனார்), was a poet of the Sangam period, to whom a sole verse of the Sangam literature has been attributed, in addition to verse 12 of the Tiruvalluva Maalai.
Biography.
Nagan Devanar was born as "Devanar" and lived in Madurai. He was known for his expertise in the ancient Tamil theatre.
Contribution to the Sangam literature.
Nagan Devanar has written a sole Sangam verse—verse 164 of the Agananuru—apart from verse 12 of the Tiruvalluva Maalai.
Views on Valluvar and the Kural.
Nagan Devanar opines about Valluvar and the Kural text thus: