Yellow phosphorous is a chemical compound used widely as a rodenticide and in fireworks. Due to its easy availability in India, consumption with suicidal intention is common. Liver is the organ most commonly involved. Though cardio-toxicity manifesting as hypotension, tachycardia, arrhythmias and transient electrocardiogram changes is well known, a persistent left ventricular dysfunction is yet to be reported. We report a case of persistent left ventricular dysfunction as a long term sequelae in a teenager with intentional consumption of this compound.