The CBI today registered a fresh Preliminary Enquiry (PE) related to Radia tapes against a senior Income Tax officer who was trying to get a transfer by allegedly offering bribes to CBDT officers.

The sources said a senior IT officer and an alleged middlemen having links with the officer and others have been named in the PE as accused.

"This is to verify the allegations that the said officer while posted in Income Tax Appellate Tribunal was trying to get transferred to Delhi by allegedly paying illegal gratification in CBDT," CBI sources said.

CBI has so far registered 13 PEs on the direction of the Supreme Court which had asked on October seven to probe into the issues related to intercepted phone calls of corporate lobbyist Niira Radia with politicians, corporate top shots, bureaucrats and businessmen.