One day devikarumari took the image of old lady and went to sun to forecast his future. Without realizing her as devikarumari, he simply neglected her.
Devikarumari immediately vanished. Sun has lost his brightness and its glory started declining. Realizing his mistake he begged devikarumari to forgive and excuse him. Sun also requested devikarumari to celebrate Sunday as the day of devikarumari . devikarumari also accepted it. He also got permission from her to pour on her sunrays twice in a year in the month of panguni and purattasi.