According to a growing body of research, in people with type 2 diabetes mellitus (T2DM), cardiovascular diseases are a leading cause of mortality. Many studies have sought to understand the many pathways that may play a role in CVD in diabetics in a significant way. According to research, pat had a much higher overall morbidity and mortality rate. The culprits are hyperglycemia-induced macrovascular diseases, autonomic neuropathy, and generally diabetic cardiomyopathy, which is quite significant. Diabetic people might be diagnosed with cardiomyopathy even if they generally are initially asymptomatic and show no clinical indications of the disease, or so they essentially thought. Echocardiography provides the opportunity to measure systolic and diastolic function, which is explicitly fairly significant. A significant risk factor for developing diabetes appears to be prediabetes with the risk of conversion is approximately 70% in the next ten years, with similar microvascular and cardiovascular consequences to diabetes. Immunological factors, Cytokines, advanced glycosylation end-product accumulation and oxidative stress, a standard processes involved. Diastolic dysfunction alters diastolic filling and increases isovolumetric relaxation time in diabetic patients. One of the independent markers for assessing the propensity of developing Cardiovascular disease in a diabetic population is Insulin Resistance. On the other hand, normotensive patients have been linked to left ventricular dysfunction, even when omitting those with coronary artery disease (CAD), which is quite significant for all intents and purposes. According to experts at the Indian Institute of Cardiology (ICC) in Bangalore, even people with normal blood pressure and prediabetes exhibit asymptomatic diastolic dysregulation.