The Intelligence Bureau has told the Supreme Court that CBI is implicating its officers without verifying the facts in the 2004 Ishrat Jahan encounter killing case of Gujarat.
It also placed in a sealed envelope secret inputs it had received about terrorist activities of Lashkar-e-Toiba which was trying to eliminate senior BJP leader L K Advani and the then Gujarat Chief Minister Narendra Modi.
"Despite full cooperation extended by IB in the course of investigation in this case, CBI seems to have filed a charge sheet in this case implicating four IB officers without fully verifying all the relevant facts," IB said in its affidavit.
The IB also referred to the June 25, 2010 letter received from Legal Attache, posted in the US Embassy in Delhi, mentioning some information about Ishrat Jahan which became available to the FBI officers during the interrogation of David Coleman Headely.
The affidavit assumes significance in view of the second supplementary charge sheet filed by CBI on February 6 naming former IB Special Director Rajinder Kumar and three others for being "involved" in the case.
Other three names are P Mittal, M K Sinha and Rajeev Wankhede.
The IB in its affidavit elaborated the sequences of events that led to the encounter in which 19-year-old Mumbai-based girl Ishrat Jahan, Javed Sheikh alias Pranesh Pillai, Zeeshan Johar and Amjad Ali Rana were killed in a fake encounter in 2004.
In its first charge sheet, CBI had named Gujarat's suspended Deputy Superintendent of Police N K Amin and six other police officers.
The six other police officers include IPS officer G L Singhal, retired DSP J G Parmar, Mehsana Deputy SP Tarun Barot and commando Anaju Chaudhary.
It had alleged that it was a joint operation of state police and Intelligence Bureau. Amin was accused of abducting Ishrat and Sheikh from Vasad two days prior to the killings and firing the shots during the so-called encounter.
The four were gunned down by the Gujarat police on June 15, 2004 on the charge that they were on a mission to eliminate the then Chief Minister Narendra Modi. CBI has claimed all the four were killed in a "fake" encounter.