Explanation:

According to the latest Ground water year book - India 2017-18, India is seeing levels declining across the country. Groundwater, the source of 40% of India’s water needs, is depleting at an unsustainable rate, according to NITI Aayog. India, the world’s largest groundwater user, is seeing levels declining across the country. India accounts for 12% of global groundwater extraction, pumping some 230 billion cubic metres each year. At this rate, by 2030, nearly 60% of the aquifers will be in a critical state. Farmers in Punjab, Haryana and Rajasthan are facing the prospect of having no groundwater left for irrigation by 2025. A study using data from NASA’s “Grace” mission found that India’s Indus Basin aquifer to be one of the most overstressed aquifers in the world. Consecutive years of weak monsoons, massive deforestation, poor rainwater harvesting and pollution of rivers and lakes have led the country to depend on groundwater. More than 90% of the rice-wheat areas in north-west India are irrigated using groundwater