India, May 29 -- The Capital continued to face a water deficit of around 10% on Thursday, with the Wazirabad water treatment plant - which, along with Chandrawal, supplies over 20% of the city's drinking water - running at half its capacity as the Yamuna river channel remained starved of flow. With negotiations over the Munak canal yielding only a partial recovery, the Delhi Jal Board will send officials to Haryana to seek the release of additional water through the Somb, a smaller tributary of the Yamuna.

Data from the Haryana irrigation department recorded at 7pm on Thursday shows the scale of the diversion constraining Delhi's supply: while just 352 cusecs were being released into the river channel from Hathnikund barrage, 2,155.5 cus...