A Treta yuga Avatar
King Kartavirya Arjuna and his army visited the father of Parashurama at his ashram, and the saint was able to feed them with the divine cow Kamadhenu. The king demanded the animal, Jamadagni refused, and the king took it by force and destroyed the ashram. Parashurama then killed the king at his palace and destroyed his army. In revenge, the sons of Kartavirya killed Jamadagni. Parashurama took a vow to kill every Kshatriya on earth twenty-one times over, and filled five lakes with their blood. Ultimately, his grandfather, rishi Rucheeka, appeared and made him halt. He is a Chiranjivi (immortal), and believed to be alive today in penance at Mahendragiri.
Parashurama is most known for ridding the world of kshatriyas twenty-one times over after the mighty king Kartavirya killed his father. He played important roles in the Mahabharata and Ramayana, serving as mentor to Bhishma, Karna and Drona. Parashurama also fought back the advancing seas to save the lands of Konkan, Malabar and Kerala. He is one of the seven immortals mentioned in the scriptures.