About 450 cubic kilometres of groundwater was lost in northern India during 2002-2021 and climate change will further accelerate its depletion in the years to come, according to a new study. This is about 37 times the quantity of water the Indira Sagar dam -- India's largest reservoir -- can hold at full capacity, lead author Vimal Mishra, Vikram Sarabhai Chair Professor of Civil Engineering and Earth Sciences at IIT Gandhinagar, said.
