VVIP chopper scam: CBI books former IAF Chief Tyagi, 12 others
India | Mar 13, 2013, 02:05 PM ISTNew Delhi, Mar 13: CBI today filed an FIR against former IAF Chief S P Tyagi and 12 others for alleged cheating and criminal conspiracy in Rs 3600 crore VVIP Helicopter deal. Two new names,