Special CBI Judge O P Saini issued notices after Special Public Prosecutor U U Lalit told the court that their testimonies are required to be recorded "to arrive at the truth".
"Issue notices to the accused persons for July 3," the judge said, adding that he would decide on July 3 as to whether it would seek a reply from the accused on a separate CBI plea seeking to recall Department of Telecommunications (DoT) official Nitin Jain as a witness in the case.