Following is the chronology of events in which the CBI today filed a charge sheet in a ...

Following is the chronology of events in which the CBI today filed a charge sheet in a Delhi court against former IAF Chief S P Tyagi and nine others in Rs 450 crore AgustaWestland VVIP chopper bribery case:

* Mar 13, 2013: CBI files FIR against Tyagi, 12 others for alleged cheating and criminal conspiracy in Rs 3,600 crore VVIP helicopter deal.

* Dec 9, 2016: CBI arrests Tyagi, his cousin Sanjeev Tyagi and lawyer Gautam Khaitan in the case.

* Dec 10: A Delhi court sends Tyagi, others sent to CBI custody.

* Dec 17: Court sends Tyagi, others to judicial custody.
 

* Dec 26: Tyagi granted bail by court.

* Jan 4, 2017: Delhi court grants bail to Sanjeev Tyagi and lawyer Khaitan.

* May 30: HC stops ex-IAF chief S P Tyagi from travelling to Indonesia.

* Sep 1: Tyagi chargesheeted by the CBI in a Delhi Court along with nine others in the Rs 3,500 crore AgustaWestland VVIP chopper deal.