There were many demons sent by Kamsa to kill lord Krishna. Putana was one of them. Swami describes the fate of Putana as follows: Then came Putana, an ogress. She took the form of a beautiful lady and approached Yasoda, Sister, I heard that you gave birth to a son after many years. I am surprised and delighted. May I see him? There was nothing untoward in this request. In fact, people often came in this manner. Yasoda took Putana inside unsuspectingly, since Putana had assumed the form of one of her friends. Then Putana insisted that she be allowed to nurse the baby. An argument ensued between the two of them, at which time Krishna began drinking Putanas milk. Not just her milk, but her life-force was also sucked out. Putana fell down dead. Everyone in Gokula was astounded at the infants superhuman powers.

He thrown the baby on a stone to kill...