Many parts of the city will face severe water shortage beginning early Wednesday morning as Haryana has curtailed water supply to Delhi.

According to Delhi Jal Board officials, Haryana has reduced the supply by 15 million gallons to 20 million gallons a day since Tuesday evening, which in turn has affected water production at the Haiderpur water treatment plant.

Sources said a disagreement between Delhi and Haryana over the use of the Munak canal resulted in the sudden reduction in water supply. “Haryana wanted to release water from the Munak canal claiming it has to undertake repairs in the existing canal, but Delhi objected since the issue of supplying 80 MGD of additional water to the city by Haryana is yet to be resolved. Delhi insisted that Munak canal be used to carry water only when outstanding issues are sorted, the stand-off resulted in Haryana reducing supply,” said a source.

Delhi was worried about the Munak canal being used to release water without reaching an agreement on its demand for an additional 80 MGD.

Delhi recently petitioned the Union Water Resources Ministry seeking an additional 80 MGD of water, pointing out it was part of the agreement signed by the two States before the construction of the Munak canal. The reduction in water supply will mean less water for consumers in South, South-West, West and North Delhi.