Mishra was rushed to the Ram Manohar Lohia Hospital immediately after the collapse.
Mishra, who is on hunger strike since Wednesday at his official residence here, demanding that Chief Minister Arvind Kejriwal should reveal the source of funding of the foreign trips of five Aam Aadmi Party leaders, fainted while making a presentation on the irregularities regarding the financial transactions of the party.
His mother could be seen disturbed and in tears while he was being rushed to the hospital.
During the press conference, Mishra had levied serious allegations on AAP chief Arvind Kejriwal and accused the party of receiving black money worth crores from various shell companies.
Mishra claimed that the party leaders have been enjoying foreign trips on common man’s money which they gathered in the name of funds.
On the other hand, AAP refuted and mocked Mishra’s claims and said the person who has been briefing media along with Mishra was a spokesperson of Bharatiya Janta Party and also claimed that the party has already clarified the doubts of income tax department.
Mishra was removed as Delhi's Water Minister on March 6 in a sudden move and was later suspended from the AAP. He then said he saw Kejriwal taking Rs 2 crore from Health Minister Satyendra Jain.