"The one whose story of a tea shop is fake, marriage story is fake, electoral assurances are fake, educational degree fake...His bhakts (followers) are putting out fake posts to comfort themselves," Mishra tweeted.
In his election affidavit of 2014 during the parliamentary polls, Modi had mentioned Jashodaben as his spouse. Jashodaben and Modi are known to have been estranged.
Earlier, Mishra had also called Modi an "ISI agent" after Pakistan's Joint Investigation Committee probing the Pathankot attack visited the site in Punjab. An official of Pakistan's spy agency was also part of the committee. His remark against the Prime Minister had attracted criticism.
Meanwhile, the AAP fielded MLA Jitendra Singh Tomar, who was arrested over the alleged fake degree charges, against the Prime Minister.
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Tomar, who was sacked over the alleged fake degree charges, said Modi should also be arrested in a similar way like he was.
"I was charged with possessing a fake degree. There are similar charges against the Prime Minister now. A similar process should be adopted for Narendra Modi, the way it was adopted for me.
The Tri Nagar MLA has also filed an RTI with the DU seeking details about Modi's degree.
"When AAP leaders went to DU yesterday seeking details of the degree, the Public Information Officer initially declined to share info saying she did not have orders to share the information. The PIO asked them to bring the roll no from the PMO. If there isn't anything thing (degree) then from where will they give the information," Tomar said.