Groundwater levels in most parts of the country are fast depleting because of the way we manage our resources. The drop in it is mainly attributed to excessive demand for irrigation as well as pumping water out of the ground faster than it is replenished.

A scientific study based on space agency NASA's satellite imagery, reveals that the country's entire northwestern belt is headed towards a severe water crisis. The satellite data shows images indicating that groundwater is depleting faster than it can be replenished.

"According to current estimates, about 839 blocks across the country are being over exploited. This is far more water being extracted than can be recharged. In 236 blocks the situation is critical," said BM Jha, chairman of Central Groundwater Board.

The findings become significant given the fact that many parts of the country are already reeling under drought. The big question at the moment is whether the situation is as grim as it is made out to be? And can water efficiency save the day?

One of the major reasons for the loss of groundwater is due to irrigation practices followed by farmers. However, experts say, farming aside, indiscriminate use of water in cities is also responsible for the current situation especially in cities like Delhi where the situation has turned grim over the years.

According to the latest figures, Delhi receives approximately, 906 billion litres of rain a year which amounts to 165 litres per person per day. On the other hand, the international norm is 135 litres per person per day.

So where is the problem?

"They say there are 45 per cent water losses but this is unbilled water," said Jyoti Sharma, president of water related NGO FORCE,

So yes, groundwater is depleting and yes it is more critical in some parts of the country. But there is a workable solution and experts say a combination of proper distribution, storage and use can go a long way in reducing the country's water worries.