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You may have also noticed that there's no tub. Unfortunately, New Delhi, being next to a desert and ridiculously overcrowded has a serious water shortage problem. As a result, tubs are not common.
Since electricity is also scarce, all bathrooms have separate hot water tanks which are turned on only shortly before showering (most homes have back-up generators because power shortages occur on a regular basis).
The city water supply has no pressure, and I suspect is also very unreliable, so most homes simply pump the water (when it's available) into a large reservoir tank on the roof. Seems like a simple solution... except... by mid-afternoon in 40+ degree weather that water becomes unpleasantly hot. I discovered all this last Sunday when taking an afternoon shower....
If you pay close attention to the toilet itself you'll see the bathroom's best feature. There's a small water jet on the back side. That's right... you can wash your bottom without even getting up.
And finally there's the large bucket. A very common bathroom item used for bathing. Yup, you fill it up and using the smaller bucket to pour you wash yourself. Great way to save water!