Alvars
, were Tamil Poet - Saints, who are said to be the Hamsam of Sriman Narayanan, have dedicated their lives towards Sri Vaishnavism and towards Emperumaan and have led their life by praising / doing Mangalasasanam on Sriman Naryanan through their Tamil work of rendering 4000 Paasurams popularly called as "Naalayira Divya Prabandham
" orநாலாயிரத் திவ்வியப் பிரபந்தம்
. These Alwars are 12 in Number and out of which one is Sri Andal in the only Female Alwar.These Alwars were born in various parts of our country but they were all united in a common subject, ie dedicating their lives and praising the Lord.