Nation Reporter: CBI arrests former Air Force Chief SP Tyagi, 2 others in AgustaWestland case

In a sudden and first of its kind action, CBI on Friday arrested former Air Force Chief S P Tyagi, his cousin Sanjeev, and a lawyer in the sensational Rs 450 crore bribery case in the procurement of 12 VVIP helicopters from UK-based AgustaWestland during the UPA-2 government.