It has been recognized for several decades that diabetes mellitus is an established risk factor for atherosclerotic cardiovascular, cerebrovascular and peripheral vascular morbidity and mortality. Coronary artery disease (CAD) is multifactorial in etiology and has several important risk factors, out of which diabetes is one of the important modifiable risk factor. Dyslipidaemia is one of the important diabetic complications which is a classical risk factor for cardiovascular disease. Based on above findings the study has planned to assess the level of HbA1c and lipid profile in patients with diabetic complications and compare with patients without complications. Total 25 patients suffered from diabetes were enrolled in the present study. The study was planned in the Department of Biochemistry in Patna Medical College from Oct 2015 to Sept 2016. The age group of the patients are from 30-70 years. The patients visited to Out Patient Department (OPD) and in-patient department (IPD) of a tertiary care hospital were considered in the study. The biochemical parameters like Fating glucose level, Glycated haemoglobin (HbA1c), Total cholesterol, Triglycerides, High Density Lipid, and Low Density Lipid were estimated. Also the electrolyte levels like sodium, potassium, chlorine and bicarbonate is also monitored. It was concluded from the results of this study that HbA1c can be used as a predictor of dyslipidaemia in type 2 diabetics in addition to as glycaemic control parameter. Thus, early diagnosis of dyslipidaemia can be used as a preventive measure for the development of cardiovascular disease (CVD) in type 2 diabetics.