Ashura/Æsir/Ahura/Asar/Osiris/Uzayir/Uthra/Azrael were the Meluhha/Mleccha/Malakhei necromancers who left the Indus Valley and brought to Uruk their civilization which was known as Sumerian after them. Led by http://en.wikipedia.org/wiki/Meskiagkasher they also brought the "Osiris" civilization to Egypt.