Food scarcity is a challenging problem worldwide especially in developing countries. Micronutrient deficiency is one of the main reasons of low agricultural yield which is more common in South Asia and Africa. Farmers control micronutrient deficiency through fertilizers which may cause toxicity due to lack of proper management. The present study optimized concentration Manganese for Mung bean and analyzed growth, yield and biochemical parameters which may help the grower to improve soil quality, crop production and nutritious food. High concentrations of this salt showed adverse effects on chlorophyll pigments. Very small work has been done in order to investigate desirable concentration of essential micronutrient in soil for pulses, especially for Mung bean. For the sake of limiting the scope of this research we only studied the effects of Mn on Mung bean