This cannot be Pelopidas assamensis for the following reasons:
1. Too small, on the ?Wedelia bloom.
2. P. assamensis have the antennal shaft below the club noticeably whitened for a short lenght.

The forewing upper cell spot just noticeable above the hindwing will be relatively large if viewed in full, and there is only one spot on the hindwing.

The hindwing underside colour (too dark here) is consistent with Polytremis lubricans. Based on this and the forewing cell spot, my best guess is this species.

TL Seow