What is Thirukkural, the ancient Tamil work PM Modi gifted Putin?

During 2026 BRICS Summit in Delhi, PM Modi presented Russian President Putin with a Russian translation of Thirukkural. Authored by Tamil poet-philosopher Thiruvalluvar, this classical text comprises 1,330 couplets across 133 chapters. Divided into sections on virtue (Aram), wealth (Porul), and love (Inbam), it offers secular, universal teachings on morality, governance, and human conduct.