At first thought this beautiful purple-blue-silver colored one looked like an insect. Some google search indicates it to be a butterfly called Oriental Forget-me-not butterfly (Catochrysops strabo strabo). Look carefully and you would see hues of many colors swiftly navigating from one color to another.
And the hind leg like looking structures emanating from the hind wings appear to be some defence parts/mechanism.
What a wonderful creation of nature!