India Former IAF Chief SP Tyagi Arrested By CBI In AugustaWestland Chopper Scam: 10 Facts 0 686 Hit BrotherDecember 9, 2016 21:39December 9, 2016 Former Air Force Chief SP Tyagi was arrested today over alleged irregularities in the AgustaWestland VVIP chopper deal worth 3,600 …