mld 67 mgd there are 240 deep tube wells in the city which contribute a total of 91 mld 20 mgd of water from ground water reserves besides there are 39 tubewells that provide drinking water to rural area also currently there is no gap between demand and supply and the average domestic per capita per day supply to the residents of chandigarh is 252 litres as against the national norm of 135 litres per capita per dayto cater to the water demand of the population in 2021 it would require 40952 mld 90 mgd water whereas available supply would be only 310 mld 68 mgd which there is a shortage of about 9952 mld 2180mgd