Aam Aadmi Party’s charge of BJP’s East Delhi candidate Gautam Gambhir distributing pamphlets with “obscene and derogatory” remarks against his rival AAP candidate Atishi has led to a huge political controversy on Thursday. Refuting the allegation, Gambhir sent defamation notices to AAP's East Delhi candidate Atishi, Delhi Chief Minister Arvind Kejriwal and Deputy Chief Minister Manish Sisodia. <br />Earlier, Gambhir refuted the allegation and challenged the AAP to produce proof of the charges levelled against him. He also said he will file a defamation case against AAP leaders.