Background: Diabetes Mellitus (DM) represents one of the biggest challenges in our century, affecting hundreds of millions people worldwide, both in developed countries and in developing ones, as well; the main cause being an unhealthy life style: unhealthy food, lack of physical exercise, which most of the times, lead to obesity.Methods: This study was conducted to estimate the prevalence of DM in various age groups and gender by analyzing the hospital record based data from August 2017- December 2017 at Sub-District Hospital, Hiranagar, Kathua, J and K. Fasting plasma glucose ≥ 126 mg% and random plasma glucose ≥ 200 mg% were taken as the diagnostic criteria for diagnosis of DM.Results: Out of the 3600 patients screened for DM, majority were in the age group of 41-50 (37.06 %). Net prevalence was found to be 4.7% (170) of the total. Prevalence among females and males was found to be 49.41% and 50.59% respectively. The trend showed prevalence of approximately 6% in the age group of 41-50 and 51-60, but >60 years showed comparatively less prevalence i.e. <5%.Conclusions: Various studies from time to time have also discussed the most disturbing trend being the shift in age of onset of diabetes to a younger age in the recent years, which could be attributed to changing life-style, even in the rural areas, with a high percentage not knowing that they were suffering from diabetes; therefore, active screening programs are recommended in order to diagnose this condition earlier.