Estimation of above-ground biomass of Adhatoda vasica on a fresh-weight basis has been done, using observed weight (W0) as dependent variable and basal radius (p) of stem just above ground and height (H) of plant as independent variables, through linear regression techniques. Basal radius indicated an almost linear relationship with weight, while height appeared to be a redundant factor. The best estimates were obtained using the equation W0=bp2 × H+C, though reasonably accurate estimation can be done also through equation W0=bp+C, where C is the regression constant. Adhatoda exhibited fairly uniform distribution of moisture content along the height.