Heavy metals are constantly being released into the ecosystem resulting in soil pollution which in turn enters in to the food chain through crops and also affect the microbial health in soil. Some heavy metals are essential for plants and microbes in trace amount but become toxic at high concentration whereas, others are toxic even in trace amount. Since microbial growth is affected by the presence of heavy metals in soil, in the study attempt was made to determine the effect of two metals viz., cadmium and nickel on mycelial and carpogenic growth of R. solani. The results revealed that as nonessential heavy metal cadmium is highly toxic to R. solani at 2-3ppm and nickel although be an essential metal element, however becomes toxic above 60 ppm concentration.