"Challenger Number 3 to @ArvindKejriwal and @aap. If he can prove that I have anything to do with this pamphlet filth, then I will hang myself in public. Otherwise @ArvindKejriwal should quit politics. Accepted?" Gambhir tweeted.
The BJP also approached East Delhi parliamentary seat returning officer K Mahesh seeking a police probe into the accusations against Gambhir in connection with alleged circulation of obscene pamphlets targeting Atishi.
The complaint was lodged by BJP's Krishna Nagar councillor Sandeep Kapoor with the district magistrate and returning officer of East Delhi seeking a police probe in the matter, said Delhi BJP spokesperson Harish Khurana.
The returning officer has already asked the police to register a complaint in this case.
Also, Gambhir has sent a defamation notice to Atishi, Delhi Chief Minister Arvind Kejriwal and Deputy Chief Minister Manish Sisodia on the controversy over derogatory pamphlets.
he nine-page legal notice dated May 9 demands immediate withdrawal of each statement made against Gambhir and denies that the former cricketer had any relation with the alleged pamphlet.
"It is categorically and vehemently denied that our client has any relation to the alleged pamphlet or the deplorable contents contained therein which have been referred to ... in the statements made in the press conference on May 9 and subsequent tweets on social media with utter malafide and ulterior motives."
The notice said that it was alleged "in a calculated and coordinated manner, wrongly and erroneously ... that the pamphlets have been distributed by our client or at his behest".
The allegations had been made in view the elections on Sunday, it said.
Atishi on Thursday accused Gambhir of distributing pamphlets that questioned her morals and had objectionable and deeply offensive remarks about her.
Reading out the contents of the pamphlet, Atishi broke down twice at a press conference and said she was very pained on seeing it. She asked how women would feel safe if men like Gambhir get elected.
In East Delhi, Gambhir is pitted against against Atishi and Congress candidate Arvinder Singh Lovely.
(With inputs from agencies)