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Parides iphidamas
I agree this beautiful insect is not native to Asia, it is certainly a Parides and a new world species.
OK, you have a Caligo from Costa Rica, so you probably have the wrong location for your Papilio polytes or correctly Parides iphidamas. It is mentioned Thailand??
This is a Parides iphidamas, a neotropical butterfly from Central and South America. Looks similar to Polites, however, is from the other side of your world. I guess you took the shot in a butterfly park??