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Siva-5
Cross-posting from the Map Thread at rvbomally's suggestion, here's the Siva-5 world from the Lost Worlds supplement. The premise is an Indian-dominated world and the PoD is the Han Empire accidentally contacting the Indo-Greek Bactrian kingdom in 138 BC, leading to a Chinese-Bactrian alliance and by extension the preservation and flourishing of Indo-Greek culture (while at the same time redirecting all the steppe nomads away from Central Asia and into Europe). Europe and eventually China languish but the Indian nations (plus Japan) thrive and extend their reach across the world both politically and culturally. In the 18th century the militant populist Bhaktiya sect of Hinduism arises in Indonesia and a Bhaktiyan state based in Bali tries and fails to conquer the whole Indian Ocean, but the egalitarian ideas they spread plus the upheaval of the war spark 19th century revolutions, first in northern India for independence from the Kushan Empire and then in the Kushan Empire itself, establishing the democracy of Taxila in the former and the oligarchic Kushan Consortium in the latter. Upheaval throughout the 1800s culminates in another Balinese war at the end of the century, with Taxila leading the successful charge against Bali and subsequently riding a postwar boom to become the world's premier power, sparking ideological conflict across the world...
All that broad outline is in the book, most of the details apart from the major powers are mine; please forgive my terrible, terrible attempts at Indian-sounding names. The book says that this world has advanced biotech but doesn't go into any further detail; apart from that the tech level is basically equivalent to the same time (1947) in OTL.