That’s a bit of an oversimplification — but you’re touching on a real anthropological and genetic finding.

Modern population genetics does show that **a major ancestral component in South Asians (and many West Eurasians)** traces back to **Neolithic Iranian-related farmers**. Here’s how that fits into current scientific understanding:

1. **Ancient Iranian Farmers (c. 8,000–10,000 years ago)**

* These early agriculturalists lived in the **Zagros Mountains region of western Iran**.

* Their DNA spread eastward and mixed with hunter-gatherer groups on the Indian subcontinent.

2. **Ancestral North Indians (ANI)**

* Genetic studies (like those from Harvard’s Reich Lab) show that much of northern and central India’s ancestry derives from a mix of **steppe pastoralists** and **Iranian farmer–related ancestry**.

3. **Ancestral South Indians (ASI)**

* Also have significant Iranian farmer–related ancestry, mixed with **indigenous South Asian hunter-gatherer lineages**.

4. **Beyond South Asia**

* Iranian Neolithic DNA also contributed to **Anatolian**, **Caucasian**, and **Mediterranean** gene pools, influencing large parts of Eurasia.

So — in scientific terms, **“ancient Iranian farmer–related ancestry”** is one of the **core West Eurasian genetic building blocks**, but it’s not accurate to say *everyone* “derives” from them. It’s one of several deep ancestral sources (along with Levantine, Anatolian, Steppe, and Indigenous South Asian components).

Would you like me to show a map of how that ancestry spread east and west over time?

(http://www.autoadmit.com/thread.php?thread_id=5793471&forum_id=2Firm#49401617)