10.22376/ijpbs.2019.10.1.p1-12 Volume 7 Issue 1 2016 (January - March) Preliminary screening of phytochemicals is a valuable step, in the detection of the bioactive principles present in medicinal plants and subsequently may lead to drug discovery and development. In the present study, chief phytoconstituents of the six selected medicinal plants of different families were identified in order to relate their presence with bioactivities of the plants. Screening of six selected medicinal plants were performed for the presence of tannins, flavonoids, terpenoids, saponins, steroids, phlobatannins, carbohydrates, glycosides, coumarins, alkaloids, proteins, emodins and anthraquinones using standard methods. All the selected medicinal plants were found to contain Steroids and Coumarins except lessThan i greaterThan Urginea indica lessThan /i greaterThan (Roxb.) Kunth and lessThan i greaterThan Wrightia tinctoria lessThan /i greaterThan R.Br.respectively. Moreover, tannins and terpenoids were present only in lessThan i greaterThan Spatholobus purpureus lessThan /i greaterThan Hassk. On the other hand, saponins were present in lessThan i greaterThan Terminalia bellirica lessThan /i greaterThan L. lessThan i greaterThan , Parthenocissus quinquefolia lessThan /i greaterThan L. lessThan i greaterThan and Spatholobus purpureus lessThan /i greaterThan Hassk. Carbohydrate were present in lessThan i greaterThan Wrightia tinctoria lessThan /i greaterThan R.Br. and lessThan i greaterThan Spatholobus purpureus lessThan /i greaterThan Hassk. plants. While alkaloids are present in lessThan i greaterThan Cyclea peltata lessThan /i greaterThan Arn. ex Wight and lessThan i greaterThan Wrightia tinctoria lessThan /i greaterThan R.Br. Whereas phlobatannins, emodins and glycosides were absent in all the selected six plants. It is evident from the study that lessThan i greaterThan Spatholobus purpureus lessThan /i greaterThan Hassk. and lessThan i greaterThan Wrightia tinctoria lessThan /i greaterThan R.Br. is of highest therapeutic efficacy possessing majority of phytochemical classes of compounds and lessThan i greaterThan Urginea indica lessThan /i greaterThan (Roxb.) Kunth is of lowest therapeutic potential due to the absence of majority of phytoconstituents. U.S.PATIL AND O. S.DESHMUKH Medicinal plants, Phytochemical Screening, Traditional Medicine. 77-81