How Kanas came to know that Krishna is the eighth son of Devaki?

 How Kanas came to know that Krishna is the eighth son of Devaki?

In Hindu mythology, the story of Lord Krishna's birth and the events leading to the revelation of his identity as the eighth son of Devaki is narrated in the Puranas, particularly in the Bhagavata Purana. The tale begins with King Kamsa, the tyrant ruler of Mathura, who learns about a prophecy that foretells his demise at the hands of the eighth son of his sister, Devaki.

Kamsa, driven by fear and a desire to retain his throne, decides to imprison Devaki and her husband Vasudeva. He intends to kill each child born to them, fearing that one of them might be the prophesized destroyer of his rule. Devaki and Vasudeva endure numerous trials as Kamsa ruthlessly executes each newborn, until the night when Lord Krishna is born.

On the night of Krishna's birth, a divine intervention occurs. As soon as Krishna is born in the prison cell, the doors miraculously open, and the guards fall into a deep sleep. Vasudeva, guided by divine instructions, takes baby Krishna in a basket and crosses the turbulent Yamuna River to reach the village of Gokul, where he swaps Krishna with the newborn daughter of Yashoda and Nanda, who were sleeping soundly.

Upon returning to the prison, Vasudeva places the baby girl beside Devaki. When Kamsa arrives to carry out his cruel act, he is surprised to find a baby girl instead of the anticipated male child. This divine switch ensures the survival of Lord Krishna, the eighth son of Devaki, who is destined to bring an end to Kamsa's tyranny.

Kamsa remains unaware of this divine exchange, believing that he has successfully thwarted the prophecy. As Krishna grows up in the care of Yashoda and Nanda in Gokul, he becomes known for his mischievous yet endearing antics. Meanwhile, Kamsa continues his oppressive rule in Mathura, unaware that his nemesis is thriving in Gokul.

The turning point in the narrative comes when Krishna, as a young boy, starts revealing his divine nature through miraculous feats and displays of extraordinary strength. Stories of Krishna lifting the Govardhan Hill and defeating powerful demons spread across the land, capturing the attention of those in Mathura, including Kamsa.

Word of Krishna's exploits eventually reaches Kamsa's ears, stirring a sense of unease and foreboding. Curiosity and fear lead Kamsa to invite Krishna to Mathura for a wrestling match, with the sinister intention of eliminating the perceived threat. It is during this event that Kamsa finally realizes Krishna's true identity as the eighth son of Devaki, the one destined to bring about his downfall.

Krishna confronts Kamsa and fulfills the prophecy by vanquishing the tyrant, thereby liberating Mathura from his oppressive rule. The revelation of Krishna's true identity and the subsequent events highlight the divine plan that unfolds, showcasing the triumph of righteousness over tyranny and the fulfillment of the cosmic order.