Background: Diabetes is a disorder characterized by hyperglycemia or elevated blood glucose (blood sugar). Our bodies function best at a certain level of sugar in the bloodstream. If the amount of sugar in our blood runs too high or too low, then we typically feel bad. Diabetes is the name of the condition where the blood sugar level consistently runs too high. Diabetes is the most common endocrine disorder. Sixteen million Americans have diabetes, yet many are not aware of it. Americans have a higher rate of developing diabetes during their lifetime. Diabetes has potential long-term complications that can affect the kidneys, eyes, heart, blood vessels, and nerves. Although doctors and patients alike tend to group all patients with diabetes together, the truth is that there are two different types of diabetes which are similar in their elevated blood sugar, but different in many other ways. Diabetes is correctly divided into two major subgroups: type 1 diabetes and type 2 diabetes. This division is based upon whether the blood sugar problem is caused by insulin deficiency (type 1) or insulin resistance (type 2). Insulin deficiency means there is not enough insulin being made by the pancreas due to a malfunction of their insulin producing cells. Insulin resistance occurs when there is plenty of insulin made by the pancreas (it is functioning normally and making plenty of insulin), but the cells of the body are resistant to its action which results in the blood sugar being too high2.So this study to assess the Effectiveness of planned teaching on self-administration of insulin for patients with Insulin Dependent Diabetes Mellitus, receiving insulin through subcutaneous route in selected hospital of Bathinda District, Punjab. Aims and Objectives: The study aimed at assessing the knowledge of patients regarding self- administration of insulin with Insulin Dependent Diabetes Mellitus, receiving insulin through subcutaneous route in selected hospital of Bathinda District, Punjab. Material and Method: The Quantitative research approach is adopted and Pre-experimental one-group pre-test post-test design was used. The study sample size Total 200 Insulin Dependent Diabetes Mellitus Patients, receiving insulin through subcutaneous route in selected hospital of Bathinda District, Punjab. Non-probability convenient sampling method was used to select the sample for the study. Results: Pre-Test Knowledge majority of 117(58.5%) had average knowledge scores and rest of 68(34.0%) had Below Average Knowledge and 15 (7.5%) Good Knowledge regarding self-administration of insulin. Post -Test Knowledge majority of 165(82.5%) had Good Knowledge scores and rest of 35(17.5%) had Average Knowledge and 0 (0 %) Below Average Knowledge regarding self-administration of insulin. Pre-test knowledge mean score 1.74 Standard Deviation was 0.589. Post-test knowledge means score 2.83 Standard Deviation was 0.381 Mean differences And DF 199. The t calculated valve 21.491. There is a significant difference between Pre-test knowledge and Post-test knowledge scores (‘t’= 21.491. p<0.001) Conclusion: The insulin dependent diabetic patient has inadequate knowledge and hence by teaching strategy and the pamphlet which I distributed regarding insulin dependent diabetes was more effective for the clients. Thus, in future this kind of study can be replicated to the large group of samples and in the community setting also.