Kaaradaiyaan nonbu or Savithri viratham is a traditional Tamilnadu festival of fasting wherein married woman pray for the wellness and long life of their husband and the unmarried girls pray God to get a good husband. Along with the rice flour, we use cowpea which is called as Kaaramani in tamil. Hence the name Kaaradaiyaan nonbu. I got this information from my grandmother and from my husband’s grandmother. The origin of this story travels long back to the time of Mahabharatha. Sathyavaan, Savithri’s husband’s life will be taken away by the Lord of Death(Yamadharmaraaja). She ask to the God one by one finally asking to give her husband a long life. Seeing her purity and devotion, he grants Sathyavaan a long life. Since then this is being celebrated.This is the prayer chanted during the pooja.