What if Nader, who founded the short-lived Afsharid dynasty in Persia and went on impressive conquests, died before he could rise to power? Such as being defeated in battle against the Hotakis.
Would the 1724 Treaty of Constantinople become the definitive indicator of Persia's borders?
Without an event like the Battle of Karnal, what happens to the Mughal Empire? Can it linger on for a bit longer? And what are the effects on the rest of India?
I also heard that Nader briefly occupied Oman and Muscat. Without him, does the country fare better?
And, last but not least, what are the effects over Central Asia?