The aerial parts of plant contain a number of medicinally important compounds. The present study was carried out to extract the flavonoid rich fraction from the aerial parts of Hemidesmus indicus Linn. R. Br. and identified the phytochemicals presents in the flavonoid rich fraction of aerial parts of Hemidesmus indicus Linn. R. Br. & determined the total flavonoid contents and antioxidant potential of obtained favonoid rich fraction of Hemidesmus indicus Linn. R. Br. Total flavonoid content was estimated by Aluminium Chloride colorimetric method and the flavonoid content was 0.406 % TFC (Total Flavonoids Contents) in grams of Quercetin equivalent. Antioxidant activity was evaluated by DPPH method and IC50 value of flavonoid rich fraction of aerial parts of Hemidesmus indicus Linn. was found to be 21.39 µg/ml. Key words: Total flavonoids, Aluminium chloride, Antioxidant activity, DPPH, IC50 value.