Krishna & Kamsa Story
In a prophecy, Kamsa was told that the eighth child of Devaki would kill him. The eighth child born to Devaki and Vasudeva was Krishna. Krishna was saved from his Mama Kamsa's wrath and raised by Vasudeva's relatives Nanda and Yasoda, a cowherd couple.
After Krishna grew up and returned to the kingdom, Kamsa was eventually killed and beheaded by Krishna, as was originally predicted by the divine prophecy. Following this, Ugrasena was reinstated as the King of Mathura.