India is an agriculture based country and since independence, our agricultural productivity has increased significantly, but our success is largely confined to food grains and now it is urgent to increase production of pulses and other protein rich Legumes. Pisum sativum (Pea) is an important crop and is cultivated in almost all parts of India. Different types of pollutants, however considerably reduce agricultural productivity. Nodule formation is an important stage of life cycle of Pea and it has got significant impact on its productivity. In present study effect of fluoride on nodulation of Pisum sativum was investigated. It was observed that fluoride significantly reduces nodule formation, as well as dry weight of nodules. This ultimately reduces productivity of this crop.