Oindicum (L.) Vent (Family : Bignoniaceae) is a medicinally important plant found in India, Sri Lanka, China, Thailand, Philippines and Indonesia. It is also called Sonapatha for its properties. In India, plant parts are used in several ayurvedic preparations like Dasamoolarista and Chyawanprash. Traditionally, the various parts of the tree have been used as snake bite, anemia, alopecia, leprosy and ulcers, constipitation and ulcer etc. Therefore the aim of the present study is to carry out detailed pharmacognostical evaluation of leaves of the Sonapatha. The pharmacognostical evaluation comprises of microscopy, fluorescence analysis and physico-chemical constants such as loss on drying, extractive values and ash values. The preliminary phytochemical evaluation shows the presence or absence of alkaloids, carbohydrates, proteins, resins, flavonoids, saponins and tannins. HPTLC fingerprints profile shows the presence of various active phytochemicals present in the samples and also quantitative active phytochemicals ferulic acid and linoleic acid estimation were done. The data obtained in the present study will serve as valuable tool for identification, authentication, and detection of adulteration, standardization and quality control of the drug.