Cassia nodosa Bunch. is an ornamental tree belonging to family Leguminosae, popularly known as Pink Shower is a perennial tree. Laboratory evaluations were made to asses the study of primary metabolites in different plant parts of Cassia nodosa Bunch. The highest amount of soluble sugars (10.27mg/ gdw), lipids (32.36mg/gdw), phenols (20.0mg/gdw), DNA (11.78mg/gdw) and Chlorophyll- a+b (0.94mg/gdw) was observed in pods, ascorbic acid (0.867 mg/gdw), proteins (115.0mg/gdw), RNA (4.60mg/gdw) and carotenoids (0.554mg/gdw) in leaves and starch (10.02mg/gdw) in stems. Similarly lowest amount of proteins (39.48mg/gdw), phenols (4.67mg /gdw), RNA (0.49mg/ gdw) and DNA (1.76mg/gdw) was observed in leaves, starch (3.76mg/gdw) in flowers, soluble sugars (2.45mg/gdw), lipids (3.48mg /gdw), ascorbic acid (0.089mg/gdw) in roots.