Introduction: Maternal body dimensions are the first determinants of neonatal biometrics, especially their birth weight and length. Mother’s nutritional status is also known to be a key indicator of infant’s body dimensions and its early growth features. Birth weight and length are clearly based on mother’s nutritional and anthropometric factors hence the present study was done to find the association between BMI of mother and anthropometry of newborn among all the delivered women in tertiary care hospital Aim: To study association between BMI of mothers and anthropometry in newborn. To know the other factors responsible for anthropometry of newborn. Methodology: 216 delivered women were taken consent by predesigned questionnaire information was collected regarding the socio-demographical data and the anthropometry of newborn and mother was recorded. Statistical analysis was done by using percentage and analysis of variance. Results: Our study showed association between maternal BMI and weight with neonatal parameters except mid arm circumference. There was no association between maternal heights with any of the neonatal parameters. Conclusion: In our study we found the association between Maternal BMI and Anthropometry of Newborn, Maternal Weight and Anthropometry of Newborn, But no association was found between Maternal height and Anthropometry of Newborn, so, by carrying out some intervention during pregnancy to improve nutrition of the mother which has better effect on the Anthropometry of newborn.