The Aam Aadmi Party on Tuesday replaced its North-West Delhi candidate for the Lok Sabha elections Mahendra Singh with former Delhi Minister Rakhi Birla.

AAP had to withdraw the nomination of Mr. Singh after his alleged involvement in criminal cases cropped up, something which the social activist had not revealed in his affidavit, AAP sources said.

AAP leaders told The Hindu that Mr. Singh had a number of criminal cases against him. “We are against the idea of fielding a person with criminal background. There were several criminal cases against him. He had not informed the party about these cases because of which the party had to take the step,” said an AAP leader.

“It turned out that Mr. Singh had allegedly spent three months in jail last year in a case of fake currency circulation. We informed him that the party was cancelling his nomination, and he agreed to it,” added the AAP leader.

Out of the 10 Assembly segments in the North-West Delhi Lok Sabha seat, two had been won by the AAP in the December 2013 polls. On one of these, Mangolpuri, the 26-year-old Ms. Birla had defeated four-time MLA and then Minister Raj Kumar Chauhan.