Thank you for your definitions. I hadn't realised that nan was cooked on the side of the oven - I can see why it is so hard to cook at home.

I used to live near an South Indian vegetarian restaurant that served dosa. Would you count that as bread too. My favourite one was, I think, called paper dosa it was served in a great big fan shape looking like one of those elegantly folded napkins rising high above the plate.

The same restaurant made wonderful puris which were floated on a dish full of something made of yoghurt (like a raita).

The other staple of British Indian restaurants is the poppadom which I suppose is more like a big crisp (chip) than bread. I'm not sure if you would classify it with the breads.