Addressing a press conference, Kejriwal, AAP National Convenor, said that people are troubled by steep hike in their water and power bills but even opposition BJP was not taking up the issue.
He also alleged that Chief Minister Sheila Dikshit and her government were in collusion with the private discoms.
"I will go on an indefinite fast from March 23. I will have just water. This is not a hunger strike to demand some thing. This is a fast meant to awaken people, to help them remove their fears. I urge them not to pay bills.
Kejriwal, who resides in Uttar Pradesh's Kaushambi near Delhi border, also said that his family will not pay electricity bills in solidarity with Delhiites. He also said he will try to stay in Delhi.
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He also claimed that half of the electricity bill in Delhi is inflated and people should only pay half of what is mentioned in the bill. "If the discoms are not willing to take half the bill, then do not pay the bill," he said.
On how long the protest will continue, he said once the government approaches him he would demand CAG audit of power discoms, staying of illegal bills and changing faulty meters.