Groundwater levels declined in 554 of Telangana's 621 mandals, with the State's average water table falling by two metres year-on-year. Deficient monsoon rainfall, increased borewell dependence and reduced replenishment have intensified concerns over drinking water and irrigation supplies. Hyderabad: Telangana is facing a severe groundwater crisis, with water levels declining in 554 of the State's 621 mandals and the area where groundwater is found at depths exceeding 20 metres expanding more than.