My longtime friend and colleague Victoria Lautman spent has a facination with all things India and decided to travel in early 2013 and what she discovered can be seen on her Tumblr (http://hindjew-me.tumblr.com/). While there, she discovered these subterranean structures throughout her travels that proliferated throughout India for a millennium then gone.
These ornate structures were gathering places for men and women and now are rarely more crumbling structures sunk deep into the ground. That’s until drought has lead to architects have revisited as a potential for water collection and design inspiration for new structures. Hopefully this new focus on these ancient edifices will help to save them before they are gone.