https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5590844/
Zoroastrianism is one of the oldest extant religions in the world, originating in Persia (present-day Iran) during the second millennium BCE. Historical records indicate that migrants from Persia brought Zoroastrianism to India, but there is debate over the timing of these migrations.
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for my line was I looking at south Central Asia ...........where the Persians began before moving to Iran , they had Zorastrian
some info
Along Y-chromosome DNA haplogroups I M170, and I P215, the third most common haplogroup among the Iranian Zoroastrian Priesthood is T1a2.
While the original I haplogroups appear to go back to the Magis of Zarathustra and BMAC culture, the latter T1a2 haplogroup must hail back to the Median Magi from the West. T1a2 or (T L131
) has been found as far East as the Volga-Ural region of Russia and Xinjiang in north-west China. T1a2 penetrated into the Pontic-Caspian Steppe of Eurasia during the Neolithic, and became integrated to the indigenous R1a peoples (Proto Indo Iranians) before their expansion to Central Asia during the Bronze Age.
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and read for Zorastrians
[h=4]Ancient Iranian Agriculturists, Hittite DNA remains, and the earliest Indo European languages[/h]
A. Farahmand