Background: To study and evaluate the incidence and significance of acute myocardial infarction in early and pre discharged phase. Materials & methods: A total of 100 patients were enrolled. The age of patients was between 45 to 70 years. They were divided into groups as Group 1: early discharged (24-72hr) and group 2: non early discharged patients (Pre-discharge phase). Complete history was taken. Collection of data was done & analysed by using student-t test. Result was analysed using SPSS software. Results: A total of 100 patients were enrolled. Out of which, 60 were discharged early. The early discharged patients had better hospital outcomes compared to the other group as they showed less prevalence of post myocardial infarction pulmonary edema [1.7% (P = 0.005)] and higher LVEF 40.62 (P < 0.001).Among group 1 patients, arrythmias were seen in 28 patients while among group 2 patients, arrythmias were seen in 15 patients.