The arguments used to prove the advance of the Aryans from Afghanistan into the Punjab might simply be reversed. - Frederick Eden Pargiter

One branch, headed by Uśīnara established several kingdoms on the eastern border of the Punjab [...] his famous son Śivi originated the Śivis [footnote: called Śivas in Rigveda VII.18.7] in Śivapura, and extending his conquests westwards [...] occupying the whole of the Punjab except the northwestern corner.

There is nothing in them (Puranic accounts), as far as I am aware, really inconsistent with the most ancient book we possess, namely, the Rigveda, and they throw much light thereon, and on all problems concerning ancient India.

[tradition] makes the Aila power begin at Allahabad and yet distinctly suggests that they came from outside India.