Dynamic Ground Water Resources of the country are being periodically assessed jointly by Central Ground Water Board (CGWB) and State Governments. As per the 2017 assessment, total Annual Ground Water Recharge in the country is 432 Billion Cubic Meter (BCM) and the Annual Extractable Ground Water Resource is 393 BCM.

The Annual Ground Water Extraction for all uses is 249 BCM, out of which, 221 BCM (89%) utilized for irrigation purposes.

Ground water levels in various parts of the Country are declining because of continuous withdrawal necessitated by increased demand of fresh water for various uses, vagaries of rainfall, increased population, industrialization