VVIP chopper deal: ED summons ex-IAF chief SP Tyagi

Enforcement Directorate (ED) has summoned former IAF chief S P Tyagi in connection with its money laundering probe in the Rs 3,600 crore AgustaWestland VVIP choppers deal case. This is the first time that the ex-Chief Of Staff of the Indian Air Force has been summoned by the central agency.