Q. Who among the following given the statement  ‘The enemy of the Harappans was nature. Indra and the barbarian hordes are exonerated’?
Answer: G F Dales
Notes: American archaeologist George F. Dales first gave the statement exonerating mythical Indra or hypothetical barbarian hordes for the decline of the Indus Valley Civilization. He stated that natural factors like floods and earthquakes were more likely causes based on evidence from Mohenjodaro. This view departed from the prevailing Aryan invasion hypothesis for the civilization's demise.