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Zinc plays a greater role during reproductive phase especially during fertilization. A field experiment was conducted in district seed farm AB block, Kalyani, Nadia, Bidhan Chandra Krishi Viswavidyalaya (B.C.K.V) during 2016-17 and 2017-18 in Randomized Block Design (RBD) and replicated thrice to check the response of lentil against different concentration of ZnSO4· 7H2O. Zinc foliar application applied at preflowering and podding stage. It has been observed that all the zinc applications have better results than the control. Among different treatments 0.04% and 0.08% zinc shown better result. Among humans, Zinc (Zn) deficiency is a well documented global health problem, affecting nearly half of the world population. Zn content of the seed increased maximum in 0.08% Zn treatment but seed yield is maximum in 0.04% Zn treatment. Therefore, it is concluded that foliar application of zinc improves lentil productivity and lentil production.