The Delhi Jal Board (DJB) on Saturday said water supply in parts of the capital is likely to remain affected for a week due to "reduced availability" of raw water from the Upper Ganga Canal.
"Water supply in areas of East Delhi, Northeast Delhi, South Delhi and NDMC will remain affected in the evening... The situation may remain so for a week until the situation improves," it said.
Delhi gets 250 million gallons of raw water a day through the Upper Ganga Canal, officials said, adding around 200 million gallons a day (MGD) is being received at present.
On Wednesday, high ammonia concentration in the Yamuna and less water in the river had affected the "production" capacity at Chandrawal and Wazirabad water treatment plants -- which supply around 228 MGD drinking water to people in Delhi.