Critical study of the asavaishta preparations of brhatirayee.

This study deals with Asavarishta preparations of the Ayurvedic System of medicine and scans various classical texts to find out the different types of constituents required for their preparation along with their proportions, the method of preparation, the time required to complete the process, the fermentations pots, the fermenting materials, the place and time (season) of fermentation etc. with a view to develop certain common norms for their preparation.