In plain words
The poet, of the fruit of this decad: Paṭṭarpirāṉ, lord of ancient Putuvai renowned through the earth, has sung how Yaśōdā, her breasts swelling against her bodice, lovingly bathed Kaṇṇapirāṉ, whose body is darker than the rain-cloud; those who master this fine Tamil, rich in excellence, will have no evil deeds at all.