"With Indra, whose epithet in the Rgveda is purandara 'fort-destroyer', as his chief protagonist, Wheeler had a dramatic script that he could have marketed in Hollywood. "Indra stands accused" was his lighthearted, but later regretted, caricature of the principal culprit behind the demise of the great civilization"
January 1, 1970
https://en.wikiquote.org/wiki/Periodisation_of_the_Indus_Valley_Civilisation