 "Kainnilai" contains sixty poems written by the poet Pullangkaathanaar and "Innilai" contains 45 poems and was written by the poet Poigayaar.The poems of "Innilai" deal with the ethical concepts of "aram" – propriety, "porul" – wealth, "inpam" – love and "veedu" – salvation.In this respect it is similar to "Tirukkural" which also concerns with these concepts.