Justice Nathan Musa found Ngilari guilty over alleged violation of procurement laws.
According to the judge, the minimum sentence allowed by law was five years although the convict could have earned more than 25 years under maximum term.
The EFCC had charged Ngilari for violation of procurement laws in the award of contract of N167million to one ElYadi Motors Limited for supply of 25 units of operational vehicles (Toyota Corolla).
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The Commission had instituted a 19 countcharge against Ngilari, his former secretary to the government, Ibrahim Andrew Welye and his former Commissioner of Finance and Budget, Sanda Jonathan Lamurde.
EFCC accused them of conspiracy, lack of No objection Certificate, No competitive bidding and others in procurement process.