The MHA and the CBI have been at loggerheads over granting sanction to prosecute the four IB officials.
Vanzara was in prison since 2007 when he was for the first time arrested in Sohrabuddin Sheikh encounter case.
The 1986 batch officers who will now be ADGPs are Vinod Kumar Mall, E Radhakrishnaiah and Satish Sharma.
Amin is accused of abducting Ishrat and Sheikh from Vasad two days prior to the killings.
According to CBI, inputs about the terror suspects coming to Gujarat were given to then Ahmedabad Police Commissioner K R Kaushik.
Pandey has filed bail application through a lawyer, Paresh Nayak, who refused to talk.
The IB put, in a sealed envelope, secret inputs it had received about terrorist activities of Lashkar-e-Toiba.
Sandeep Tamgadge claimed he got death threats during Ishrat probe.
IPS officers G L Singhal and D G Vanzara (retd) have sought the previous statements of witnesses.
The Home Ministry and CBI are at loggerheads over granting sanction to prosecute the four IB officials in what CBI believes was a fake encounter case.
Home Ministry has sought certain documents from CBI related to the Ishrat Jahan case.
Jail authorities informed Vanzara about his retirement as a part of formality.
Besides Ishrat, her friend Pranesh Pillai alias Javed Sheikh, and two Pakistanis, Amjadali Rana and Zeeshan Johar, were killed by the Gujarat Police in 2004 on the outskirts of Ahmedabad.
While rejecting the application, CBI sessions judge Gita Gopi observed that the supplementary chargesheet filed in this case is pending.
The CBI requested the court to reject the application. Appearing on behalf of Shah, senior lawyer S V Raju said prima facie there was no evidence against his client.