He also assured officials that there will be no witch-hunt against them if they work honestly and in the interest of the people.
"I have asked officials to work out. By Monday, I will be able to say something," Kejriwal said on his promise of supply of 700 litres of water.
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"On power, we will be able to say something by Tuesday or Wednesday", he told reporters after a series of meetings with officials from various departments including Power, Transport, Vigilance and Delhi Jal Board.
In its manifesto, AAP had promised to slash power tariff by 50 per cent besides carrying out scrutiny of the accounts of private power distribution companies.
Kejriwal said what is being spread is that there would be a witch-hunt against officials and that a sense of fear has been created among them.
"In my meeting with the officials, I told them you work with honesty and in the interest of people, I will protect you," he said.
Kejriwal, who lives in Kausambi in Ghaziabad district of Uttar Pradesh, said his team was looking for a house in Delhi and he would shift in two-three days.