India, May 25 -- Heaping more misery on Delhi residents already sweltering under a heatwave, the dip in the Yamuna's water levels has led to reduced water supply, especially in the tail-end areas.

Officials from Delhi Jal Board (DJB) - the government agency responsible for the production and distribution of potable drinking water - said the reduction in raw water in the Yamuna has disrupted operations at the Wazirabad and Chandrawal water treatment plants (WTPs).

Several residents complained that, unlike previous years, no prior warning or advisory about a low water supply was issued.

Wazirabad WTP supplies around 134MGD (million gallons per day) water to parts of north and central Delhi, while Chandrawal WTP produces 98MGD, which is s...