As per the popular folklore of Treta Yuga, a virtuous Haihaya king of Mahishmati of Malwa region, Sahastrabahu Arjuna or Sahastararjun, more widely known as Kartavirya Arjuna drunk with power and sense of invincibility ends up killing the great Brahman sage Jamadagni over a sacred cow Kamadhenu. Furious at this heinous crime, son of Jamadagni, Lord Parashurama vows to vanquish the power-drunk Kshatriya clan from Earth. Wielding his divine axe, he eliminates Sahastararjun and later on he rages on earth 21 times, each time decimating unvirtuous and unworthy kings wherever he went.