The earliest Urai(explanation) of the Tirukkural was given by

Parimelazhagar (12th century) is credited with writing the earliest and most authoritative commentary (urai) on Thirukkural. His work is considered the standard reference for understanding the nuanced meaning of the couplets. While other scholars like Parimelazhagar's predecessors provided interpretations, his systematic commentary remains foundational to Thirukkural studies.