India, Jan. 22 -- Water supply has been disruptedto various parts of the city due to the presence of high ammonia levels, indicating presence of pollutants, in the raw water in Yamuna upstream of Wazirabad, said senior officials on Wednesday.

According to officials , the pollution spike has impacted operations of the Wazirabad and Chandrawal water treatment plants (WTPs) where the operations are curtailed by 25% to 50% levels. Both Wazirabad and Chandrawal WTPs directly draw water from Yamuna through Wazirabad pond and supply treated potable water to parts of north, central and south Delhi.

Delhi Jal Board (DJB) on Wednesday said that due to regular receipt of high pollutants in river Yamuna at Wazirabad pond, the water production has b...