The alleged attack took place on Monday night at Chief Minister Arvind Kejriwal's residence in Civil Lines area during a meeting.
In an open letter, the former officials said that it was "more shocking that elected legislators associated with the ruling party perpetrated the attack".
The letter was signed by former Delhi chief secretary D M Spolia, former Delhi Police Commissioner B K Gupta, former DDA vice-chairman Balvinder Kumar, and others.
"We demand that the chief minister immediately speak up and apologise on the issue," they said in the letter.
In the spirit of justice, it is demanded that the perpetrators of the attack be "punished at the earliest," they added.
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