Sunam,Yuddhatushti, Kamsa (Sanskrit: कंस, IAST: Kaṃsa) was the tyrant ruler of the Vrishni kingdom, with its capital at Mathura.
However, out of ambition, and upon the advice of his personal confidantes, Banasura and Narakasura, Kamsa decided to overthrow his father, and install himself as the King of Mathura.
Therefore, upon the guidance of another advisor, Chanura, Kamsa decided to marry Asti and Prapti, the daughters of Jarasandha, King of Magadha.
The eighth son, Krishna, an avatar of Vishnu, was transported to the village of Gokula, where he was raised in the care of Nanda, the head of the cowherds.
Using the army of Magadha as his political cover, Kamsa overthrew his father after he refused to voluntarily retire from his position.
This child would be raised by his surrogate mother, Rohini, and named Balarama, Krishna's elder brother.
Presuming the infant to be Devaki's eighth child, Kamsa prepared to murder her, but the girl slipped out of his hands.
Assuming her true form, Yogamaya proclaimed to Kamsa, "The eighth child, who shall kill you, has been born.
Krishna was saved from Kamsa's wrath and raised by Vasudeva's relative Nanda and Yasoda, a cowherd couple.