Conclude Yourself how big the problem is if so!!
Demand in the country is projected to very soon overtake the availability of water. In some regions of the country, it has already happened. The rapid increase in population, urbanization, and industrialization has led to a significant increase in water requirements. In the next decade, the demand for water is expected to grow by 20 percent, fuelled primarily by the industrial requirements which are projected to double from 23.2 trillion liters at present to 47 trillion liters. Domestic demand is expected to grow by 40 percent from 41 to 55 trillion litters while irrigation will require only 14 percent more ten years hence, 592 trillion litters up from 517 trillion litters currently.
India’s land area can be divided into 19 major river basins. The per-capita water resource availability of these basins varies from a low of 240 m3 in the Sabarmati basin to a high of 17,000 m3 in the Brahmaputra basin, while water withdrawals vary from 243 m3 in the Meghna basin to 1,670 m3 in the Indus basin.
India receives an average of 4,000 billion cubic meters of rainfall every year. Unfortunately, only 48% of rainfall ends up in India’s rivers. Due to lack of storage and crumbling infrastructure, only 18% can be utilized. The average annual rainfall in the country is 1170 mm with a wide range between 100 mm in desert areas of Rajasthan to 10000 mm in Cherapunji. The total available sweet water in the country is 4000 billion m3 per annum. Out of this, over 1047 billion m3 water is lost due to evaporation, transpiration, and runoff, reducing the available water to 1953 billion m3 and the usable water to 1123 billion m3.
I hope you could have got an Idea that India will seriously be facing a “Water Crisis” by 2050(demand for water is increasing along with a decrease in water in the water reservoir). Many places in India are already starting to face water shortages. It’s just the start of an extremely big problem.