Lumbar hernia arises through posterolateral abdominal wall defects either through superior lumbar
triangle [Grynfeltt-Lesshaft] or inferior lumbar triangle [Petit]. Most of the lumbar hernias are secondary
to trauma or previous surgery. Few cases have been reported in literature. We report a case of post traumatic right Inferior
triangle hernia of Petit in a 29-year-old healthy male. The hernial defect was closed with 2 layered procedure - sublay and onlay
with polypropylene mesh, owing to a big defect and thin abdominal wall muscles. Patient recovered well. Our two layered open
meshplasty have been effective, safe and presents with good post-operative recovery. The patient was followed up regularly and
there was no recurrence even after 1 year.