Sahaj Vati, an Ayurvedic herbo-mineral formulation comprising of Suddha Shilajeet, Suddha Guggul, Haridra and Chitrak, has been used for treatment of obesity. Two types of Sahaj Vati was prepared namely I and II, Sahaj Vati I was prepared by bhavana of Agnimanth kwatha to the powder of Suddha Shilajeet, Suddha Guggul, Haridra and Chitrak whereas Sahaj Vati II was prepared by dissolving the Suddha Shilajeet, Suddha Guggul in Haridra and Chitrak kwatha followed by bhavana of Agnimanth kwatha. The characterization of Suddha Shilajeet, Suddha Guggul, Haridra, Chitrak and both Sahaj Vati was carried out using infrared spectroscopy and UV/Vis-infrared study. It was observed that IR absorption peaks of both Sahaj Vati did not absolutely match with its ingredients and some peaks of ingredients were totally absent in both Sahaj Vati. It was also observed that peaks of Sahaj Vati I and II differ significantly from each other. UV/Vis spectra of both Sahaj Vati showed absorption in region of 200-700 and 200-500 nm, respectively. Thus both Sahaj Vatis have different IR and UV/Vis spectra.