The “Umbilical coiling index”, which is the ratio of the twists to the length of the cord irrespective of the direction of the coils. An abnormal coiling index has been reported to be related to adverse fetal outcomes. However at present enough data on UCI and its relationship with perinat al outcome is not available in India. This study is an attempt to find out the umbilical coiling index in Indian babies and the perinatal outcome. The present study was planned in the Department of Paediatrics, Sri Krisna Medical College and Hospital, Muzaffarpur, Bihar. The study was performed from March 2018 to December 2018. A total number of 25 pregnant women were randomly chosen by a single observer from those who got admitted to the labour ward. Deliveries occurring after 28 weeks of gestation with singleton, cephalic presentations were included in the study. Several antenatal and perinatal adverse features were associated with abnormal UCI. There are adverse antenatal and neonatal features are associated with abnormal UCI. The association shows wide variations among the various studies done so far. Antenatal study of UCI should be followed, to confirm diagnosis at an earlier gestational age.