You are right. There is a costal injury mark & two scratches in space 2 & 3 which are matching with pix 2.
TL Seow: Cheers.
PS. On reflection it is probably H. epicles..
All valid pix of H. ila shows the white mark in space 2 to be straight whereas this is slightly chevron.
The off angle of the shot seem to have flattened it.
There is still H. indicus to consider.
PS2; It looks like the male H. indicus have the FW cilia barely checquered plus more prominent postdiscal dark dashes, so that rules it out.
http://www.ifoundbutterflies.org/med...ndhi_ar532.jpg
https://www.thaibutterflies.com/Butt...horus-indicus/