The global demographic trend conveys dynamic growth of population ageing. This inwardly shed the light on the high consumerism of medications of elderly as well as increasing risk of polypharmacy. The main objective of this study was to assess the prescribing patterns of geriatric patients in a tertiary care teaching hospital using the modified American Geriatric Society (AGS) updated beers criteria 2019.The prospective observational study was carried out in 330 patients in a period between September 2019 to March 2020 in a tertiary care teaching hospital. All patients from an age group above 60 years old in general medicine department were included. The study data was analyzed by using Microsoft Excel and Chi-square test using SPSS (Version 32).Among the enrolled 330 patients , the most commonly used inappropriate drugs was Pantoprazole 210(63.64%), Aspirin 82(24.85%) and Insulin 66 (20%). Majority of the patients were diagnosed with Hypertension, Diabetes, COPD and IHD. According to the criteria, most of the inappropriate prescriptions belong to the patients with the age group of 60- 70 years of male gender. This study accomplished with a conclusion that the inappropriateness of medication is directly proportional to the number of medications. The inappropriate medication prescription is prevalent in the older patients according to the Beers Criteria. Frequent assessment of prescription can help in improving thelife expectancy and quality of health in the geriatric patients.