Why Are There Multiple Versions Of The Same Story In Hari-Katha

“Devaki was very much afraid of her brother Kamsa because he had already killed so many of her children. She used to remain very anxious about Krishna. In the Vishnu Purana it is stated that in order to pacify Devaki, all the demigods, along with their wives, used to always visit her to encourage her not to be afraid that her son would be killed by Kamsa. Krishna, who was within her womb, was to appear not only to diminish the burden of the world but specifically to protect the interest of the Yadu dynasty, and certainly to protect Devaki and Vasudeva.” (Krishna, The Supreme Personality of Godhead, Vol 1, Ch 2)