The present study aimed at characterization of phytoconstituents, total flavonoids and antioxidant activity of different parts of Aegle marmelos Correa. The powders from different parts of Aegle marmelos were analyzed for the phytoconstituents by phytochemical profiling and measurement of total phenolic content and estimation of marmelosin, umbelliferone and luvangetin. Our study would be first ever reported on quantitative analysis, to the best of our knowledge for these relative constituents of the different parts of Aegle marmelos Correa. plant. The total antioxidant activity (2,2-Diphenyl-1-picrylhydrazyl (DPPH %)) varied from 20.8±0.66 to 0.18±0.01, the total phenolic contents (mg gallic acid equivalent (GAE/g)) varied from 5.74±0.26 to 0.12±0.02 & the total flavonoid contents ranged from 1.58±0.01 to 0.04±.0.01. Luvangetin, marmelosin and umbelliferone (% by weight) for Aegle marmelos Correa. fruit pulp was found to be 1.78± 0.11, 1.61± 0.04 and 1.84± 0.14 respectively. The intent of this research is to focus on the quantitative analysis of these parts which will help in use of Aegle marmelos Correa. plant in future for research in the field of nutraceuticals development, treatment & finding cure for gastrointestinal and other chronic diseases for medicinal purpose.