Medicinal plants have been extensively used as major source of drugs for the treatment of various infections in human population since long ago. A study was conducted to evaluate the efficacy of crude extract of Adhatoda vasica Nees (Bakhar) on blood sugar level of 20 diabetic patients (males and females). It was observed that sugar level in blood of patients was significantly decreased from 290 to 220 and 385 to 310mg dl -1 in both fasting and random condition in female patients. Where as results indicates more effects in male patients 280 to 185 and 386 to 180mg dl -1 respectively, for before and after in take of diets. Adhatoda vasica Nees, which contain a lot of useful bioactive compounds, is a small evergreen plants species found in mountains area of Rawalpindi and Islamabad.