Standardization of herbal formulations as determined by the concentration of their activecomponents is essential to appraise the quality of drugs. The current study intends to investigate the phytochemical and physicochemical analyses of Vaividanga Choornam, a traditional Siddha polyherbal composition. This Vaividanga choornam contains the ingredients like Vaividangam (Embelica ribesBurm.), Milagu (Piper nigrumL.), Chukku (Zingiber officinale Rosc.), Omam (Trachyspermum ammi (L) Sprague), and Nilavaagai leaves (Cassia angustifolia Vahl. - syn. Cassia senna). It treatspitha diseases, constipation, indigestion, flatulence, burning sensation, bronchial asthma, and Kapha diseases. It is also an effective medicine for treating intestinal helminths caused by heavy worm burdens in young children. This study aims to estimate the quality of Vaividanga Choornam by performing pharmacognostic studies, preliminary phytochemical analysis, physiochemical parameters like ash value, extractive value, and loss on drying as per pharmacopoeial laboratory for Indian medicine guidelines, and also with the help of tests done with High-Performance Thin Layer Chromatography (HPTLC), FTIR Spectroscopy, and UV -Vis spectrometric analyses. The results obtained fromthose analyses showed the presence of various phytochemicals. The results indicate that the drug is of adequate quality and may be used to establish pharmacopeial standards of the medicine.