Id help pls

[Kaustuv Chatterjee]

Shot in Katerniaghat. Can someone help me id this?

Shot with the Nikon D 90, Nikkor 70-300mm, at 300mm, ISO 400, 1/160s - F/5.6

[Mrudul Godbole]

I think it is a Large Tree Nymph butterfly, experts please confirm. Nice colours. Good details. Slight less space on the left would be good. Thanks for sharing.

[Sabyasachi Patra]

Best time to click butterflies is very early in the morning. Else they just flyoff and getting a full frame image becomes next to impossible.