Background: Vitamin D deficiency during pregnancy is associated with the non-classical action of this hormone, being linked with preeclampsia, insulin resistance, gestational diabetes mellitus and increased risk for caesarean section delivery. Vitamin D deficiency has been hypothesized to be associated with low birth weight and admission to NICU. Aim: To study prevalence of vitamin D deficiency in pregnancy and its correlation with the maternal complications and evaluate perinatal outcome.Material and Methods: Total 100 patients were studied for vitamin D levels and associated obstetrical complications and risk factors over a period of one year. 88 pregnant women were found to be deficient with vitamin D.Result: 88 pregnant women out of 100 were deficient in Vitamin D levels. Maximum patients were less than 30 years of age, Vitamin D deficiency more in house wife (86.36%),multiparous (68.0%),Cesarean section (54%) in deficient group, Pregnancy with complication (33.0%) like preeclampsia, Gestational hypertension, PROM were less prominently seen in deficient group. Neonatal outcome like birth weight (86.75%)>2.5 Kg and <2.5kg (13.25%), NICU admission (21.69%) in Vitamin D deficient group.Conclusion: Our study show high prevalence of Vitamin D deficiency in pregnant women and complication with pregnancy were less prominently seen in Vitamin D deficient group like PROM, preterm labor, Diabetes, Gestational Hypertension, Cesarean section rate and thus fails to show a direct relation between low maternal vitamin D level and adverse fetal outcome.