Mumbai Airport’s new Terminal 2 is distinctive, a visually interesting blend of modern (the textured white pillars) and hints of India (the palm leaf lamps that open and close to adjust brightness).
The permanent lounge is not quite ready so some lower level gates have been commandeered to make a temporary lounge. I believe that improvisation is locally called Jugaad. Not many lounges in the world with boarding gates and moving walkways.
There is a great food selection, numerous Indian dishes, desserts like Earl Gray pannacotta, and, echoing my favorite airport lounge in the world, a big pile of rambutans. No better way to wait for a flight than munch rambutans.