New Delhi, Jul 13 (IANS): The Delhi High Court Wednesday refused to hear a plea seeking direction to the Central Bureau of Investigation (CBI) to make industrialists Ratan Tata and Anil Ambani and lobbyist Niira Radia co-accused in the 2G telecom spectrum case.

"I will not pass any order. You argue at your own peril," Justice Ajit Bharihoke said, asking Delhi-based journalist M. Furquan to withdraw his petition, which also sought similar directions on DMK chief M. Karunanidhi's wife Dayalu Ammal.

Furquan then decided to withdraw the petiton but requested the court to give him the liberty to approach the Supreme Court.

The court slammed the petitioner saying that since the CBI was already investigating the case, the plea abuses the due process of the court. "I may impose a fine for filing a rubbish plea," the judge warned Furquan.

"I will not allow you to approach anywhere. Withdraw your petition."

Earlier, too, the special CBI court had rejected Furquan's application seeking a similar order. Special Judge O.P. Saini said no third party would be permitted to "alter or interefere" with the on-going CBI probe in the case.

The court had noted that both the applications -- one of them by Furquan and the other by a Delhi-based businessman -- had failed to put forth any new evidence.

"Cognizance of the police case has already been taken and no further investigation can be ordered by the court at the instance of third parties, who are not even remotely connected with the issue," the court had said.

"The police case cannot be altered beyond recognition at the instance of third parties, whose motives are unknown and (who) are also not in possession of any new evidence," the court said and even imposed a fine of Rs.10,000 each on the petitioners.

"The applications are not only devoid of substance but contrary to law and deserve to be dismissed with heavy cost as applications after applications of this nature are being filed by third parties, resulting into loss of precious time of the court."