Zero day

                               You can say "Black Day"

Now a days a term is very famous in our country and that is "Zero day". You must have heard this word if u are aware. This word particularly means zero ground water in a city or a particular place. Chennai is a good example for this because we know how Chennai peoples are largely affected by the absence of drinking water. farmers have no water to farm,houses have no water to drink,washer man have no water to wash clothes ,etc........