These are what people here call gypsies. It does seem they are on the move and always in the company of great herds. They wear the most fabulous red clothes!
Very recently there was a huge earthquake not too far from this area, in Kutch, that totally, completely destroyed most of the cities and towns sending many more of these people onto the road. The area was so badly destroyed that the Lonely Planet guide book suggests you might not be able to find any accommodation.
(get the numbers)