Indirectly referring to BJP, Soni said it should have come forward to stake claim after Arvind Kejriwal resigned.
"When the government led by AAP resigned, the second largest party after it should have come forward to stake claim to form the government in Delhi.
"But that did not happen and the imbroglio continues.
"I want to say this very clearly that it is a gross injustice to the people of Delhi to keep them deprived of a government for so many months.
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"If the party which has the numbers doesn't come forward to stake claim to form the government in Delhi, I don't think there can be a better option than going back to the people to seek a fresh mandate," Soni who was here on a daylong visit to take stock of the situation ahead of November 20 poll to a vacant Rajya Sabha seat in the state told reporters here.
"I have spoken to all the prominent leaders in the state including Chief Minister Harish Rawat and PCC chief Kishore Upadhyay on the issue.
"But as you know only the party high command is authorised to take a final call on it," she said.
Soni said she will provide the feedback to the AICC chief who would decide as to who should be made the party nominee for the Rajya Sabha.