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Introduction: Fragility hip fractures in nonagenarian patients pose a great challenge in management. To the best of our knowledge, no study has previously evaluated the outcomes and risk factors for mortality after hip fractures in this subgroup of population from the Indian subcontinent. Materials and Methods: A retrospective observational study was performed on nonagenarian patients(aged ≥90) who underwent surgery for hip fractures between March 2016 and March 2019. The patients were divided into two groups: “survivor group” (Group A) and “mortality group” (Group B). The demographic data, type of fracture, side of fractured limb, preinjury ambulatory status, American Society of Anesthesiologists (ASA) status, comorbidities, time interval from injury to surgery, operative time, length of hospital stay, and postoperative ambulatory status were recorded from hospital medical records and were studied between the two groups. The follow-up duration of the study was 1 year. Results: Thirty-four patients were included in the study. Both the groups had 17 patients each. Cardiac dysfunction was the most common cause of mortality. The time interval from injury to surgery (odds ratio [OR] = 11.2), gender (OR = 0.23) and postoperative mobility status (OR = 0.07) were found to be significantly different between the two groups. No significant difference in ASA grade, comorbidities, fracture type, preinjury ambulatory status, operative time, and length of hospital stay was seen between the two groups. Conclusions: Risk factors for mortality after hip fracture surgery in the nonagenarian population are male gender, delay in surgery (>3 days) and poor ambulatory status in the postoperative period. Hence, the aim for such patients with hip fractures should be to perform an early surgery and encourage an early ambulation. [ABSTRACT FROM AUTHOR]