It was far later that a reverse current of emigration left what is now northern India and proceeded westward settling to a certain extent in the lands of their ancient forefathers, and this accounts not only for the similarities between the west and east of this district, but the Indian influence perceptible in Mesopotamia and the close linguistic and other links that existed between the ancient Zoroastrians and the Brahmanical streams of thought.

It was far later that a reverse current of emigration left what is now northern India and proceeded westward settling to a certain extent in the lands of their ancient forefathers, and this accounts not only for the similarities between the west and east of this district, but the Indian influence perceptible in Mesopotamia and the close linguistic and other links that existed between the ancient Zoroastrians and the Brahmanical streams of thought.