Mystery: Brass Teapot?

This was given to me years ago. It was covered in dried on mud. I'd had it in a box and completely forgotten about. Today, I rediscovered it and cleaned it up. Can anyone tell me a time period? Etc? I see that the bottom has the words "world gift India"... I've googled this phrase and found nothing much pertaining to this teapot. It's quite tall. Approximately 36"+ tall. Beautiful piece, but I have no history to go along with it.