The World Health Organization (WHO) estimates that nearly 9,00,000 people worldwide die from suicide every year, including about 1,70,000 in India. Suicide is the act of intentionally causing one‘s own death. With the growing menace of this event the challenges lie ahead not only on the individual but also the society as a whole to tackle this problem. For the fifth successive years, the Union Territory of Puducherry has been found to have the highest rate of suicide in India. We have noticed that, due to easy availability of rat killer poison in grocery shops and supermarkets and due to its low cost, suicide by ingestion of rat killer poison is common method of suicide in Pondicherry.  Active ingredients include anticoagulants in massive toxic doses which cause diffuse internal bleeding. Hence, this study is undertaken to study the various morphological (gross and microscopic) findings in patient dying due to rat killer poisoning.