A flowering stimulant composition with Nitrobenzene for Agricultural and Horticultural flowering crops comprising Nitrobenzene as an Active ingredient, with Natural/Synthetic/Ionic (or) Non Ionic chemical surfactant and base with petro (or) Non petro solvent base. A typical example of 100 kg of the composition has 5 to 10 kgs. of Linear alkyl aryl Benzene (Acid slurry), 1 to 2 kgs. of Sodium Hydroxide 2 to 4 kgs. of Urea, 20 kg of Nitro Benzene and Quantum sufficientum Filler & stabilizer. In the case of 100 kgs. of granular formulation, the composition has 75 kg or 80 kg of Roasted or unroasted Bentonite clay or silica quartz sand granules, 10 kg or 15 kg Nitrobenzene and Quantum sufficientum Coating agent and De-activating Chemicals.