Smoking has been identified as an independent risk factor for insulin resistance, a precursor for type 2 diabetes mellitus. India being the second largest producer and consumer of tobacco and its products, the Indian population is at higher risk of developing diabetes and its complications. The present study was carried out to find out the association between current smoking, glycated hemoglobin (HbA1c) level and Body mass index (BMI) in patients with type2 diabetes mellitus. No association was found between current smoking, glycemic control and BMI in patients with type 2 diabetes mellitus. Though BMI was higher in patients with poor and very poor glycemic control in both smokers and non smokers, but the difference was not significant and more studies are required.