Background Laparoscopic surgery is becoming the gold standard for most abdominal surgeries in recent times. Laparoscopic repair of perforated duodenal ulcer (PDU), however, is still an area of debate. The purpose of this study was to evaluate the safety and efficacy of laparoscopic repair of PDU versus open repair. Methods In this cross-sectional study, patients were consecutively sampled. Out of 101 patients with clinically diagnosed PDU, 36 patients underwent laparoscopic Graham patch repair and 65 underwent open Graham patch repair in a tertiary care academic hospital. Open repair was via upper midline incision, and laparoscopic repair by the three-port technique. The following stages were calculated: operative time, duration of postoperative analgesia, time taken to mobilize, and patient length of stay after the operation. Results The mean operative time was somewhat longer in the laparoscopy group compared to the open repair group (74.01 vs 56.17 minutes, respectively). Mean postoperative analgesia requirement, time taken to mobilize, and hospital stay were significantly shorter after laparoscopy than after open repair (1.21 days, 9.32 hours, and 3.12 days vs 3.83 days, 16.20 hours, and 4.85 days, respectively). Three patients (8%) in the laparoscopy group and 35 (54%) in the open repair group had postoperative complications. Conclusions Laparoscopic repair of PDU is a safe approach and better than open repair in terms of operative time with the right level of expertise only, postoperative analgesia requirement, mobilization, duration of hospital stay, and incidence of postoperative respiratory and wound complications.