A Retrospective study of neonatal factors relating to birth weight in tertiary care hospital. The objectives were to determine the mean birth weight & sex ratio of live term deliveries. A Sample of 642 neonates who fulfilled the inclusion criteria were selected for the study. An extensive review of literature and guidance by experts formed the foundation to the development of the study. The data collection was done by reviewing the medical records in medical record section. The collected data was tabulated and analyzed. The mean value is 44.9 and the frequency distribution of the study shows that 83%neonates are belongs to normal birth weight, 12% neonates are belongs to low birth weight ,2.18% neonates  are belongs to overweight and 0.98% neonates are very low birth weight