Tradition… makes the earliest connexion of the Veda to be with the eastern region and not with the Punjab. - Frederick Eden Pargiter

The Aryans began at Allahabad, conquered and spread out northwest, west and south, and had by YayAti’s time occupied precisely the region known as MadhyadeSa… They expanded afterwards into the Punjab and East Afghanistan, into West India and the northwest Dekhan…

Tradition or myth… directly indicates that the Ailas (or Aryans) entered India from the mid-Himalayan region.

Indian tradition knows nothing of any Aila or Aryan invasion of India from Afghanistan, nor of any gradual advance from thence eastwards.