Do not get misled by the name…this is a butterfly very common in my place and all over India.
The Common crow butterfly (Euploea core) is not very colourful; yet it is very lovely. Glossy black or dark brown with white spots make it very beautiful. They are slow feeders, taking their own sweet time at the flowers.
The larva of the species is colourful and possesses tentacle-like structures. Chrysalis is glossy and silvery.
I have images of these stages captured in my garden.