According to the World Health Organization (WHO), 1 million serious unintentional poisonings occur every year and an additional 2 million people are hospitalized for suicide attempts with pesticides.In countries such as India, OPs are easily available and cheap, hence a source of both intentional and unintentional poisonings. Since it is a time bound study, all the patients diagnosed with organophosphorus poisoning attending OPD and inpatient department during study period were included in the study. A total of 188 study participants were included. Out of 69 mild OP poisoning cases, all of them survived, mortality was zero. Among 82 moderate cases, only 4 patients died. Among 37 severe OP poisoning cases, 14 patients died. The co-relation between severity of poisoning and mortality was statistically significant. And among out of 18 dead mean CPK was 756.Thus, the correlation between mean CPK and mortality was statistically significant.