The 36-year-old father of three was earlier convicted by the Waigani National Court on three counts of rape.
Paul Supa was among 11 others who abducted the woman as she was returning from the Six-Mile market on 18 October, 2015, where they raped her.
Excessive use of violence with guns and knives were used to threaten her, fortunately, her relatives came to her rescue.
Justice Martin Ipang, in handing down his sentence, says despite the country being full of resources, law and order remains a big issue.