Following World War II, Western anthropologists realized that race cannot be scientifically defined, based on cranial size or nasal index. According to Prof. Kenneth A. R. Kennedy, who has studied the Harappan skeletal remains extensively, “Biological anthropologists remain unable to lend support to any of the theories concerning an Aryan biological or demographic entity.” According to Prof. Gregory Possehl, an anthropological archaeologist at the University of Pennyslvania, “Race as it was used in the nineteenth and early twentieth centuries has been totally discredited as a useful concept in human biology.” Thus there is nothing to distinguish the invaders from the natives; in short, there is no Aryan or Dravidian race.
Few years back, Gregory L. Possehl, Professor Emeritus of Anthropology at the University of Pennsylvania, was reading Leo Oppenheim’s Ancient Mesopotamia: Portrait of a Dead Civilization, when he discovered a reference to a personal seal of a Meluhhan translator — Shu-ilishu — who lived in Mesopotamia. Possehl tracked down a photograph of the seal as well as got a fresh impression from the original seal (pic). The seal was dated from Late Akkadian (2200 – 2113 B.C.E) to Ur III (2113–2004 B.C.E)