among the first yadu Dynasty there was a great king bhajman, whose son was king prithiku, prithiku grend son was shursen, who conquered the nine pieces of the earth and spread his light in the world like sun. He lived in mathurapuri and ruled over mathurdesh and shursen. His queen was named marisha, who had ten son's and five daughters. The eldest son of them was named vasudeva whose wife devaki. When vasudev left for his home after getting married to devki, a voice was heard from the sky that in her eighth pregnancy, the one who would destroy kansa ( demon King ) would be born. Hearing this, kansa come to kill his sister. He grabbed Devaki from the chariot with his sword in his hand and started biting her and saying to her, if a tree is uprooted from it's roots, how can it bear fruits and flowers why don't I kill this one so that there remains no doubt about the birth of a son. Then I can rule without any fear and without any obstacles. Seeing this vasudev with praises and logic and with compassionate sweet words. He said, O kansa you are a great warrior, praiseworthy among the warriors, who knows the virtues and spreads the fame of the bhojvansh. " Look at this, first there is the excitement of debate, secondly this helpless woman of the saintly caste, thirdly your beloved sister,  then what religion is it kill this helpless woman. Vali never lay hands on a helpless woman, because killing a woman is written in the branch as a great sin. Those who kill this helpless woman out of fear of death, then death does not end in any way, because death keeps on following human beings in every birth. The day a human being is born, death also takes place on the same day.