Toxicity induced by a higher concentration of lead (Pb) can significantly decrease plants growth, gas exchange and yield attributes. It also caused cancer in humans. Use of organic amendments especially biochar has the capability to alleviate Pb toxicity in different crops. Application of biochar can decrease the uptake Pb by roots in plants. However, high pH of thermo pyrolyzed biochar makes it unfit amendment for high pH soils. As Pb is an acute toxin and its uptake in rice is a major issue, current experiment was conducted with the aim to explore the efficacy of chemically produced acidified carbon (AC) for mitigation of Pb toxicity in rice. Leas has introduced artificially at the rate of (0, 15 and 30 mg kg-1 soil) in combination with 0, 0.5 and 1 % AC underground water (GW) and waste water irrigation (WW) in rice. Results confirmed that addition of 1% AC significantly improved plant height, number of tillers, spike length fresh and dry weights of spikes and straw, 1000 grains weight, photosynthetic rate, transpiration rate and stomatal conductance over 0 % AC under GW and WW irrigations at 30 mg Pb kg-1 soil (30Pb) toxicity. A significant decrease in electrolyte leakage and plant Pb concentration by application of 0.5 and 1 % AC validated their effectiveness for mitigation of 30Pb toxicity in rice over 0 % AC under GW and WW. In conclusion, 1 % AC is effective amendment in the alleviation of Pb toxicity in rice irrigated with GW and WW at 30Pb.