The Delhi government has sought intervention of the PMO to tackle the situation, while accusing the Haryana government of not giving the capital its legal share of water.
Addressing a press conference, Deputy Chief Minister Manish Sisodia said around 80 MGD of Delhi's water supply has been stopped by Haryana government despite court's order.
"I have requested the Lt Governor to seek the PMO's intervention to deal with water crisis. This is a political issue and PMO should intervene at the earliest. We should go beyond politics on this issue," he told reporters here.
Mr Sisodia, who is holding the additional charge of water since former minister Kapil Mishra was sacked from the Delhi Cabinet last week, said chief secretarial talks of both Delhi and Haryana could not reach any conclusion.
"I have also told the L-G that there has been a talk on water crisis at the level of officers, but there is still no solution to water crisis. If water shortage continues, we will have to cut down water supply in central areas of Delhi," he said.
"Delhi water crisis still not resolved. Water being stopped despite court order. I have directed DJB to file contempt petition in HC," he said in a tweet.
Delhi's water requirement is 900 million gallons per day, but it is falling short by about 50 MGD since May 8, according to a senior Delhi Jal Board (DJB) official.
The official said areas of north and central Delhi were affected by the shortage. Water supply was severely affected in NDMC areas, including parts of the President's estate in the evening.
The situation arose mainly because production of the Chandrawal water treatment plant was hit.
In the evening, Mr Sisodia held a high-level meeting with the officials of DJB and directed them to take all necessary measures to ensure that the city continues to get its legally obligatory uninterrupted water supply so that no inconvenience is caused to the residents.
Mr Sisodia asked the DJB to keep all its options ready.
Yesterday he had directed Chief Secretary M M Kutty to talk to his Haryana counterpart and ensure restoration of full water supply to Delhi.