The invading Aryans have no memory of their original homeland
One of the most important anomalies in the AIT, which is worth pointing out, is that the Aryans know of no homeland but India. Though the Vedas and the Puranas have been memorized and preserved for thousands of years, the same people have no memory of having come from any foreign land. Also, there is no archaeological evidence of such a massive invasion for such a massive invasion in ancient times. But we are asked to believe that the Aryans, generations of whom were able to memorise and orally preserve voluminous records like the Vedas and the Puranas for thousands years were incapable of remembering the name of their homeland. Their memory was so bad that they thought India itself was their original home. This is first of the many contradiction of the AIT.
Ref: Sarasvati and the Vedic Civilisation by NS Rajaram