Introduction:70 to 80% of individuals suffer from low back pain related to prolapse of the lumbar disc, particularly among young, active workers. The condition results in a great deal of pain, sciatica, and impairments in motor function development which has become more severe as a global healthcare issue. Though conservative therapies prove useful, instances of surgery, for example, fenestration discectomy, promise efficient alleviation from such conditions with less morbidity, adequate recovery durations, and better quality of life outcomes in the longer term. This study evaluates the functional outcomes of lumbar disc prolapse patients after fenestration discectomy surgery. Method: This prospective cohort study, conducted in Pt B D Sharma PGIMS, Rohtak, from June 2019 to June 2021, investigated the outcomes of fenestration discectomy in 30 patients presenting with lumbar disc herniation. Patients were included if MRI definitively diagnosed lumbar disc herniation with radicular symptoms, thus forming a relatively homogenous cohort of subjects and yielding the most reliable outcome results. Result: It comprised only 30 patients with lumbar disc prolapse, of which the largest age group was predominantly male and aged forty-one to sixty. The most commonly affected disc level was L4-L5. After fenestration discectomy, 63.33% achieved an excellent outcome, 30% had a good result, and 6.67% had a fair recovery outcome, suggesting that fenestration discectomy has a valid role in enhancing functional independence. Conclusion: This study concluded that fenestration discectomy improves functional outcomes in patients with lumbar disc prolapse. It had no complications, reduced recovery time, and favourable results, though the small sample size limits the findings.