"Moreover, to get his racial interpretation in [RV 4.6.13-14], Geldner has to unnecessarily assume "attraction", i.e. inaccurate agreement between krsna black and sahasra 'thousands'. This is not necessary if we interpret krsna as a sandhi form krshnah and construe it as modifying puro 'forts'. Under this interpretation, of course, krsna refers not to people , but to forts."