Sunny, there are only two Jamides species which have uppersides as deep blue as the Sky Blue ( J. caeruleus.)
Both also have a larger orange patch than usual.

J. virgulatus can be ruled out immediately as its forewing postdiscal band is broken & uneven.

This leaves Jamides malaccanus malaccanus which have a straight forewing postdiscal band.
This species usually have all the white striae well-aligned, but there are examples in which the lower striae near the orange patch are out of alignment.
This one also suffer from a slight misalignment of the 4th stria higher up.

No need of upperside for confirmation.

TL Seow