NEW DELHI: The CBI on Friday examined Air Marshal JS Gujral — former Indian Air Force (IAF) deputy chief — in connection with the Rs 3,600-crore AgustaWestland VVIP chopper scam. The agency sources say that Gujral was examined as a witness in the case to understand the procurement process of the VVIP helicopters by the IAF as deputy IAF. The agency is close to filing a chargesheet against former IAF chief SP Tyagi in the AgustaWestland scam.