Special CBI Judge Anju Bajaj Chandna also discharged Verma and his Romanian wife Anca Verma in a money laundering case filed by Enforcement Directorate (ED) in the matter.
The CBI had filed its charge sheet against Verma, his wife, Rheinmetall Air Defence (RAD) and its top official Gerhard Hoy.
The court discharged them saying that there was not enough evidence to put them on trial in the two cases.
Verma had promised to stall the blacklisting process in exchange for money, according to the police chargesheet.
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The agency had told the court that it had traced banking transactions from Europe to the US, linking Verma and his associates with the German arms conglomerate.
ED had filed a separate case of money laundering against the couple on the basis of the CBI complaint.
The German company's troubles started in 2009 when the CBI registered an FIR accusing it of bribing the then Director General of the Ordnance Factory Board (OFB) to secure a contract for supply air defence guns to the Indian Army.