Kanimozhi told a Central Bureau of Investigation special court that the investigating agency has filed this application for summoning additional witnesses at a "highly belated stage" when the recording of evidence has already been closed and requested the court to dismiss the plea.
Kalaignar TV MD and co-accused Sharad Kumar also sought dismissal of the application, while other accused told the judge that they would not file written reply on the CBI's plea but will advance their arguments orally.
The court posted the matter for arguments on Oct 27.
The court was hearing CBI's plea seeking court's directions to summon Enforcement Directorate (ED) Deputy Director Rajeshwar Singh and others as prosecution witnesses.
The agency told the court that some fresh facts had emerged in the probe conducted by the ED which had filed a separate chargesheet against 19 accused in a money laundering case related to the 2G scam.
According to the CBI, then communications minister A. Raja was biased in distributing 2G mobile airwaves and operating licences to telecom firms, causing a huge loss to the state exchequer.
The court framed charges Oct 22, 2011, against 14 accused and three companies under various provisions of the Indian Penal Code and the Prevention of Corruption Act.
All the accused, including Raja, are out on bail.