The sage looked the mark on Vishnu's
back .The sage came to know about the mark and said that it's related to Garud (enemy of snakes ). So the snake ran away from Vishnu. And even the sage said one thing about his grandfather's death that none of his family knew it. The sage said that his grandfather once had killed a snake to fulfill one of his deeds . After killing he had left the place but snake was badly injured. The snake was not an ordinary snake it was magical snake , before dieing it had given all it's magical spell to another and it to kill your grandfather .After hearing this Vishnu got startled. He wanted to know more about snakes ,so...