Kejriwal asked whether those named in Italian court order should not be immediately arrested and interrogated.
"Why is the PM silent on Agusta? First BJP spared Vadra, now protecting entire Congress top brass in Augusta?," the Delhi Chief Minister said on twitter, referring to Congress Chief Sonia Gandhi's son-in-law Robert Vadra.
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In December last year, CBI had raided the office of Kejriwal's Principal Secretary Rajendra Kumar in connection with an alleged corruption case. Kejriwal had then accused the PM of getting CBI raid conducted at Delhi Secretariat.
The controversial deal to buy VVIP choppers and the alleged bribes paid in clinching it have triggered a political storm after an Italian court cited handwritten references to Sonia Gandhi, her political secretary Ahmed Patel and former Air Chief S P Tyagi by a middleman in a judgement that convicted the helicopter company's chief executive.