Objective: The objective of present work was to evaluate the qualitative and quantitative assessment of momordica charantia, pongamia glabra and piper nigrum extract for the natural product present in them. These plants were having the rich source of alkaloid, glycoside, tannins, carbohydrates, saponins, flavonoids, proteins and amino acids and were used as anti-diabetic, anti-inflammatory, antitumor, anti-malarial and having wound healing potential. Materials and Methods: Extract of all three plants has been separated by the process of Soxhlet extraction. The extract of momordica charantia, pongamia glabra and piper nigrum evaluated for qualitative and quantitative measurement of alkaloid, glycoside, tannins, carbohydrates, saponins, flavonoids, proteins and amino acids content. Different solvent is used for the extraction of content includes petroleum ether, ethyl acetate, alcoholic and distilled water. Results and Conclusion: Preliminary Phytochemical screening was performed for extracts of Momordica charantia fruits (FMC), Pongamia glabra (LPG) and Piper nigrum fruits (FPN). Identification test on extracts was shown the sign of alkaloid, glycoside, tannins, carbohydrates, saponins, flavonoids, proteins and amino acids content. Discussion: All results indicates that extracts of Momordica charantia fruits (FMC), Pongamia glabra (LPG) and Piper nigrum fruits (FPN) having a rich source of Glycosides, alkaloid and flavonoid content.
 Keywords: momordica charantia, pongamia glabra, piper nigrum, glycosides, flavonoid, extraction.