So because Hindu scriptures don't mention the Caspian Sea, this scientifically validates the fact that Aryans came from Indian lands?Aryan migration theory is bumkum and is a theory propogated by colonial rulers to divide North and South Indians. No Hindu scriptures have any mention of any land from Central Asia.
Ask yourself how idiotic this is for a moment. Firstly, it's negative evidence. You're claiming the absence of something (that is not an obligate prerequisite for something anyway) somehow disproves the same thing.
They can write whatever they want in their fairy tales. That they didn't mention central Asia doesn't scientifically prove they're from India. This is simple bullcrap.
If I visit some far away land and don't write about my home town, am I no longer from that home town?
Why are you people so mind numbingly stupid? Honestly, please explain.