Saptagirish, I like the way you were able to get so many on the same branch, I do wish the top bird was facing more towards us since his face is a little dark I might open it up a bit. I might evict the small piece of twig at the base since it seems cut off. Lovely green BG, I never saw these birds before.
Love the shot - to see a family like this is really pleasing. I agree the top bird was a little less than fully cooperative. My only other suggestions to those of Denise is to tone down the highlights on the twigs a little. I may be tempted to make masks of the cheeks and introduce a little more light.
I love that you got all these at once. great light and dof on all birds. If this were mine I'd try ridding of the bottom little branch as well as the long empty one that intersects the one birds beak