Given the rather dark basal parts of both underwings, I think these are both, probably Black Forester Lethe vindhya. One image from Chiang Mai and the other from Mae Wong (w Thailand) which would be slightly outside of known range, though not surprising.
Comments appreciated please.

Image 1. Chiang Mai
unknown Forester Mae Kamphong 01.JPG

Image 2. Mae Wong.
unknown Forester Mae Wong 01.JPG