A DOSE of the powder of sirísha (mimosa sirísa), udumbara (glomerous fig-tree), and sami (acacia suma) mixed with clarified butter, renders fasting possible for half a month; the scum prepared from the mixture of the root of kaseruka (a kind of water-creeper), utpala (costus), and sugar-cane mixed with bisa (water-lily), dúrva (grass), milk, and clarified butter enables a man to fast for a month.