The Central Bureau of Investigation has filed a supplementary chargesheet against former national auditor Shashi Kant Sharma in the Rs 3,700-crore AugustaWestland chopper deal.
The central probe organization has additionally sought permission from the defence ministry to prosecute retired Air Vice Marshal Jasbir Singh Panesar, deputy chief check pilot SA Kunte, the then Wing Commander Thomas Mathew and Group Captain N Santosh, sources said.
Sharma was Joint Secretary (Air) in the defence ministry between 2003 and 2007 and then Defence Secretary 2011-2013. He was then comptroller and Auditor General from 2013 to 2017.
Kunte and Santosh retired as air commodores.
The CBI took over the case in 2016 and filed the first chargesheet towards former Air Chief Marshal SP Tyagi and 11 others on September 1, 2017.
The rip-off relates to the buy of 12 VVIP helicopters from AugustWestland.