The burning of the wood ash is causing an environmental pollution related issue. The excess concentration of wood ash in the environment normally influenced on plant growth and development. This paper presents the effects of neem wood ash (Azadirachta inidca A. Juss.) on germination and seedling growth performance of mung bean (Vigna radiata L.) crop plants. Overall, the data reveals significant (p<0.05) effects of neem wood ash on the different growth variable of mung bean. The treatment of 4-20% neem wood ash significantly (p<0.05) affected shoot length of mung bean as compared to control. Neem wood ash treatment at all concentration produced fewer toxic effects on root and leaf growth of mung bean. The neem wood ash treatment at 20% also produced significantly (p<0.05) toxic effects on root and leaf dry weight of mung bean. Whereas, neem wood ash treatment at all level did produce any significant effects on shoot dry weight, total plant dry weight and leaf area ratio of mung bean.