Indologists like Dr H. C. Raychadhury, Dr B. C. Law, Satya Shrava and others see, in these verses, the clear glimpses of the struggles of the Hindus with the mixed invading hordes of the barbaric Sakas, Yavanas, Pahlavas, Kambojas, etc. from north-west [REF].
According to Dr H. C. Ray Chaudhury, this is too clear a statement to be ignored or explained away.