It was also found that Andrographis paniculata have antimicrobial activity (Anand et al., 2011). It is also observed by Sugumaran and Vetrichelvan (2008) that tannins are absent in ethyl acetate extract of Bouhinia purpurea Linn. leaves. In the study prototype results were observed in B. acuminata. The leaves of Clerodendrum viscosum possess flavonoids, alkaloids, carbohydrates, tannins (Chandrashekar and Rao, 2012), which is similar to the results of chemical analysis in Clerodendrum infortunatum. In the present findings, the methanolic extract of leaves of Sida humilis revealed that the absence of flavonoids, tannins and reducing sugars in contrast with the result of Kalaiarasan and John (2010), in Sida cordifolia.