Background: Diabetes Mellitus is one of the most common diseases in the world and is acquiring epidemic proportions. Its prevalence is growing in developed and developing countries. There is an emergent need of effective screening instrument to identify "diabetes risk" individuals. In this study we aim to evaluate Indian Diabetes Risk Score (IDRS) and Finnish Diabetes Risk Score (FINDRISC) for predicting risk of diabetes mellitus and to assess utility of Indian Diabetes Risk Score (IDRS) and Finnish Diabetes Risk Score (FINDRISC) for predicting risk of diabetes mellitus. Material and methods: This Hospital based observational study was conducted on 1200 not known diabetic subjects who came to outdoor department or admitted in GGS Medical College Faridkot. All the patients underwent complete clinical evaluation and then both IDRS and FINNISH Diabetic Risk Score were applied on all the patients. Simultaneously FBS, RBS and HbA1C was done on each patient. Results: FINDRISC score had sensitivity 84.2% and specificity 97.2%. IDRS score had sensitivity 98.68% and specificity 16.5%. Conclusion: FINDRISC shows fairly good diagnostic accuracy and clinical utility for detecting diabetes. FINDRISC can be used as a tool for identifying people at risk for diabetes and therefore requiring further evaluation. Key words: Diabetes Mellitus, Finnish Diabetes Risk Score, Indian Diabetes Risk Score, Screening tool.