The Thirukkural is a classic Tamil sangam literature consisting of 1330 couplets or Kurals.
It was authored by Thiruvalluvar.
The Thirukkuṛaḷ is one of the most important works in the Tamil language

The Thirukkural is structured into 133 chapters, each containing 10 couplets, for a total of 1330 couplets. The 133 chapters are grouped into three sections: Each Kural or Couplet contains exactly Seven words.

(Tamil: அறத்துப்பால், Aṟattuppāl ) Aṟam (Dharma) (1-38)
(Tamil: பொருட்பால், Poruṭpāl ) Poruḷ (Artha) (39-108)
(Tamil: காமத்துப்பால், Kāmattuppāl) Inbam (Kama) (109-133)
A couplet or kuṛaḷ consists of seven cirs, with four cirs on the first line and three on the second. A cir is a single or a combination of more than one Tamil word. For example, Tirukkural is a cir formed by combining the two words tiru and ‘’kuṛaḷ. Aram contains 380 verses, Porul with 700 and Inbam with 250.