Special CBI Judge Sanjeev Aggarwal was told by Ajay Kumar Bassi, the former investigating officer in the case, that the current IO, Satish Dagar, was trying to 'save' Asthana and others.
Special CBI Judge Sanjeev Aggarwal directed the initial investigating officer, Ajay Kumar Bassi, in the case to appear before it on February 28.
Rakesh Asthana and Devender Kumar were named in column 12 of the charge sheet in the case since there was not enough evidence to make them accused.
They said when it comes to allegations of corruption the Commission can carry out inquiry against all India service officers.
The apex court on Wednesday had agreed to hear on October 26 a separate plea filed by the CBI chief challenging the Centre's decision to divest him of powers and send him on leave.