Basella alba L. is an important green leafy vegetable found commonly in the tropical regions of the world. The fruit sap is used as a substitute for synthetic indicator in volumetric analysis. The results obtained with the fruit sap have been compared with the synthetic indicators like phenolphthalein, methyl orange and methyl red indicator. It has been determined experimentally that the fruit sap can be successfully used in place of phenolphthalein, methyl orange and methyl red indicator for volumetric analysis. Basella alba fruit sap is pH sensitive and give different colours in acidic and alkaline medium.