Background: To determine whether there is any correlation between Glasgow coma scale and Age Group. Higher the age group with higher Glasgow coma scale has the best outcome. Methods: Retrospective study which included cases presenting with chronic subdural hematoma in Chitwan Medical College Teaching Hospital (CMCTH) neurosurgery department from 5th November 2012 to 30th may 2021. 170 patients diagnosed with Chronic subdural Hematoma operated were only included in the study. Ct scan was used to conform the diagnosis. Glasgow outcome scale was employed to define outcome at 3 months as favourable (GOS 4 and 5) or unfavourable (GOS ? 3). Age, aetiology, risks factors, Glasgow coma scale at admission, location of hematoma, recurrence, were analysed for potential impact on final outcome. Results: Among the 170 patients included in our study, majority of them were male (84.7%), Head injury was the most common cause (40%) of them had directly or indirectly related with trauma, and hypertensions (23%) were the predisposing factors for chronic subdural Hematoma. The Glasgow coma scale was favourable among >60 year group (94.1%) compared to that with 9 at presentation and unfavourable if Glasgow coma scale <9 with coagulopathy has possibility of recurrent. Conclusion: Higher the age-group with higher the Glasgow coma scale has the best outcome. This study hints our advanced age group with coagulopathy has a higher possibility of recurrences.