The reported phyto constituents of the Parijat leaves are arborsides A, B, C, flavonol glycosides, astragalin and nicotiglorin. Flavonoids are large group of compounds occurring abundantly in plants. Leaves Nyctanthes arbor-tristis also found to contain D-mannitol, β-sitosterole. Flavanol glycosides- astragaline, nicotiflorin, oleanolic acid, nyctanthic acid, tannic acid, ascorbic acid, methyl salicylate, an amorphous glycoside An amorphous resin, trace of volatile oil, carotene, friedeline, lupeol, mannitol, glucose and fructose, iridoid glycosides, benzoic acid. Stem contains few important constituents such as glycoside-naringenin-4’-0-β-glucapyranosyl-α-xylopyranoside and β-sitosterol.