Evie
Pronounced like Eevee
The "they mixed the civs up" theory that put Great Britain, Assyria and Silla in COTW is certainly alluring, but I don't see Antiquity Nepal with Nalanda as a great fit for the last slot : Nalanda has pretty much nothing to do with Nepalese history, and Nepal itself is a better fit for both of the other two eras (Gorkha/Gurkha Kingdom in exploration, Nepal proper/Gorkha Empire in modern).
Honestly, if either of the unassigned Indians wonders are Nepalese, I think the Red Fort is more likely to be it, because of the Gurkha connection (as the Gurkha certainly DID garrison the Red Fort under the Raj). I don't think this is particularly likely, but I think it would make more sense than Nalanda of the available clues. This would also fit Nepal in modern, which make much more sense.
Honestly, if either of the unassigned Indians wonders are Nepalese, I think the Red Fort is more likely to be it, because of the Gurkha connection (as the Gurkha certainly DID garrison the Red Fort under the Raj). I don't think this is particularly likely, but I think it would make more sense than Nalanda of the available clues. This would also fit Nepal in modern, which make much more sense.