Special Judge O P Saini also rejected his plea to direct the CBI to file a status report in its ongoing probe in the matter and posted it for further hearing on May 31.
During the hearing, Swamy claimed that the CBI has confirmed that further probe into Tata's involvement in the 2G case was underway and alleged that "the CBI in the past had been compromised".
Swamy has filed the complaint against Tata, former telecom minister A Raja, former corporate lobbyist Niira Radia and others in the court.
He has alleged that the CBI had "purposely" left out Tata, his group companies, Radia and some others in the 2G case.
Swamy has also sought action against Unitech MD Sanjay Chandra, other officials of his firm and "erring" CBI personnel who allegedly did not probe the matter seriously.
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