"If the Bhushans have proof, they should show it. I have enough proof. The truth needs to be exposed," Singh told reporters here.
Claiming that there are four or five versions of the controversial CD, he also questioned the forensic tests run on the CD by the Bhushans.
"Anna Hazare must not allow his people to mislead him," Singh added, claiming that the letter written by the veteran social activist was drafted by others.
Anti-corruption activist Anna Hazare has written a letter to Congress President Sonia Gandhi drawing her attention to the ongoing campaign being led by the party leaders against civil society members of the Lokpal Bill Joint Drafting Committee.
The former Samajwadi Party MP earlier handed over a copy of the controversial CD to the Delhi Police.
"I have complete proof. Many in Hazare's team are tainted. I have submitted four sets of audio CDs to the police," Singh told reporters outside the Indraprashtha Police Station here after submitting the CD.
Shanti Bhushan, the co-chairman of the Lokpal Bill Committee, earlier today moved Supreme Court seeking criminal contempt action against Amar Singh.
The former law minister accused Amar Singh of fabricating the CD to force Justice G S Singvi recuses from hearing 2G scam and Singh''s tape cases pending before a bench headed by him.
Bhushan also sought setting up of a special investigation team to investigate the crime of fabrication of CD, which was meant to defame him.
Shanti Bhushan''''s advocate son Prashant Bhushan claimed last evening that the CD controversy is a conspiracy to discredit the civil society members of the Lokpal Bill Drafting Committee, and the doctoring of the CD has the backing of some powerful people.
He also said that he sent the CD to two private labs, which say that it is doctored.
Citing the alleged experts, Prashant Bhushan said the CD is a cut-and-paste-job and there are six places where the ''''it'''' has been edited.
He said that parts of the Amar-Mulayam conversation are from the Amar Singh tapes, recorded before February 2006, and which Bhushan submitted to the Supreme Court for an inquiry.
Anna Hazare had on Sunday rubbished allegations accusing Shanti Bhushan, who is the co-chairman of the Lokpal Bill joint drafting committee, of being involved in a CD controversy, and backed his presence on the panel.
"The CD is bogus. This is the report we have received. I heard this first thing in the morning. Now Shanti Bhushan is facing the court. If he is guilty, he should be punished. But, if he is not guilty and if someone is trying to deliberately spoil his reputation, then it is not right. How can I guarantee for anyone? I have just been introduced to Shanti Bhushan," said Hazare.
"Such allegations will be levelled against us," he added, when asked whether Bhushan should continue as a member of the joint drafting committee.
It was earlier reported that Shanti Bhushan has approached the Delhi Police seeking investigation into circulation of a CD purportedly having his conversations with political leaders Mulayam Singh Yadav and Amar Singh, alleging they were fabricated.
Bhushan alleged that a journalist approached him for his comments for a news story on the CD, which purportedly had his conversations with the leaders.
The CD has audio clippings of a phone conversation allegedly between Shanti Bhushan, Mulayam Singh Yadav and Amar Singh about influencing a judge.
It, however, remains a mystery as to who circulated the CD.
Chidambram assures 'fair' probe into CD row
Home Minister P. Chidambaram Monday said the government will hold a "free, fair and thorough" investigation into charges against lawyer Shanti Bhushan linking him to a controverial CD.
"I have been assured by Delhi Police that there will be a free, fair and thorough probe. The CD will be examined in at least two different labs for separate reports," Chidambarm told reporters here.
The controversy involving Bhushan continues to rage even after his son and Lokpal civil society panel member Prashant Bhushan called the CD fake.
The CD has a purported conversation between Shanti Bhushan and Samajwadi Party chief Mulayam Singh Yadav claiming a judge could be bribed.
Prashant Bhushan has questioned the authenticity of the CD.
"The CD is fabricated as we have got it subjected to forensic examination from two of the topmost forensic labs specialising in audio analysing," he said.
He theatened to file a contempt petition in the Supreme Court in a day or two.
Source: Agencies