Ponta was indicted alongside social democrat senator Dan Sova and the manager of Rovinari, in connection with the defrauding of state energy companies Turceni and Rovinari back in 2007 and 2008.
Anticorruption prosecutors said in June they were investigating Ponta on several counts of fraud relating to the Turceni-Rovinari case, where he signed invoices in his capacity as an attorney in 2007 and 2008, under a contract with the law firm of Dan Sova, also investigated for corruption.
Anticorruption prosecutors said at the time Ponta had not performed any of the work billed and had used part of the money collected as fees to buy luxury apartments in Bucharest.
The collaboration contract in question was terminated in December 2008, when Ponta was appointed minister.