The book is the outcome of a Major Research Project on ‘Infant Mortality among the Primitive Tribal Groups in Jharkhand’ sponsored by the University Grants Commission of India in which the author was the sole Principal Investigator. It is observed that high level of infant deaths among the primitive tribes are caused by extreme level of poverty, widespread childhood diseases, non-utilization of modern medical facilities, dearth of health facilities, malnutrition, illiteracy among mothers, non-scientific use of indigenous medicine, poor cleanliness & unhygienic situations, prevailing superstitions about child rearing, non-availability of pure drinking water, poor transportation & communication facilities, delayed breastfeeding, prevalence of single parent family, poor housing design, heavy liquor consumption by the parents, extreme low level of income, low productivity of land and so on and so forth.