Ammonium, potassium, sodium and iron are major water pollutants evaluated in the region of Muzaffargarh in extracted leachate from land filled MSW. Concentration of Ammonium nitrate varies from 500 mg/l to 6000 mg/l which is high enough from WHO and EPA standards. This project will investigate the mitigation of ammonium nitrate by using Chemical precipitation technique. Magnesium chloride and disodium hydrogen phosphate were used as a precipitating agents. Removal efficiency was observed as a function of residence time and pH of the solution. At pH 7.68, ammonium nitrate efficiency was 74.25%  and  increased to 85.5% at pH 9.8 and then starts to decrease. From pH 9.8 to 10.8 a decreasing trend is observed. Removal efficiency increased from 65.81% to 85.5% when time increased from 5 to 10 minutes. Removal efficiency then decreased to 84.12% and 83.56% at 15 minutes and 20 minutes mixing time respectively. Experimental accumulative result shows that reduction of ammonium nitrate with magnesium chloride and disodium hydrogen phosphate is 85.5% at pH 9.8 and optimum mixing time is 10 minutes. This technique is valid for the removal of hazardous ammonium nitrate from leachate and is viable solution in South Asia.