A prospective interventional study was developed to assess the treatment satisfaction and quality of life in patients under adjunctive insulin therapy. A total of 80 patients were counselled using approved and licensed questionnaires such as Diabetes Treatment Satisfaction Questionnaire (DTSQ) and Quality Of Life Instrument for Indian Diabetes Patients (QOLID). Subjects were diagnosed with diabetes and who were on therapy of both insulin and hypoglycaemic agents, admitted to the hospital were taken as participants for the study. The patients were assessed with the questionnaires and counselled them with the necessary information. Treatment Satisfaction and Quality of life were measured before and after patient counseling to see the improvement in their quality of life. QOLID consists of 8 domains, every domain has a mean total of 80 patients in which the total mean of post counseling was found to be greater significance than the pre counseling which shows there was an improvement in quality of life of the patients. The mean total of pre counseling was found to be 4070.93 and post counseling was found to be 6384.17. DTSQ consists of a 6 items scale assessing treatment satisfaction and 2 items assessing the perceived frequency of hypoglycemia ad hyperglycemia. The results were analyzed statistically for DTSQ and QOLID and the outcome confirmed the improvement in the quality of life in patient’s post counseling