The death of children before completing one year is called as infant mortality which is measured by IMR (infant mortality rate) that is the number of children death before completing one year of life per thousand live births. Knowledge about this infant mortality is were important as the number of infants deaths are increasing day by day. Asphyxia, pneumonia diarrhea, malnutrition and preterm complications are some of the leading causes of infant mortrality. Environmental factors, parental education, santation problems should be given some extra care for the prevention of infant mortality. Infant mortality is one of the important index of measuring the development of a country or a region. Further robusting, dynamic and healthy research is suggested in order to recognize loop holes regarding infant mortality globally specially in developing countries to decrease infant mortality rate to lowest level. By throwing light on this topic arranging workshops and awareness programs, infant mortality rate can be reduced