Introduction: Patients with hypertension have an increased prevalence of type II diabetes mellitus and impaired glucose tolerance. Prevalence of prediabetes is increasing worldwide and experts have projected that more than 470 million people will have pre-diabetes by 2030. A proportion of 5-10% of people per year with pre-diabetes will progress to diabetes, with the same proportion converting back to normoglycemia. Blockade of Renin Angiotensin System [RAS] either by an Angiotensin converting enzyme (ACE) inhibitor or an Angiotensin receptor blocker (ARB) would slow down the progression of prediabetic state to diabetes.