It has been since long, that severe postpartum haemorrhage (PPH) was surgically treated by peripartum hysterectomy. Bilateral ligation of Internal iliac artery is an emerging technique by which we can control PPH efficiently and can conserve uterus. The aim of our study, is to estimate the effectiveness of bilateral Internal iliac artery ligation (IILA) for conservation of uterus in the management of postpartum haemorrhage and outcome on the patients.This observational study was carried out on the admitted patients in between March, 2016 and February, 2020in a hospital having a tertiary obstetric care. Internal iliac artery ligation done to control postpartum haemorrhage of hospital admitted patients, was our study subject. Collected data were analysed in mean, median, percentage and proportion as applicable by using of SPSS version 24 statistical software.In the study population, out of forty-one patients, uterine conservation was possible in thirty-six (87.8%) patients. Most commonly sixteen (39%) patients had an indication of uterine atony for Internal iliac artery ligation. Caesarean section, thirty-four (82.9%) was the most common mode of delivery and general anaesthesia was used most commonly, thirty-seven (90.2%) for Internal iliac artery ligation. Procedure related complications were e.g. relaparotomy one (2.4%), Internal iliac vein injury two (4.9%) and wound infection two (4.9%).Internal iliac artery ligation is an effective means to control PPH. It can effectively preserve reproductive potential of women by avoiding peripartum hysterectomy in many cases. Postpartum hemorrhage is a life threatening complication of child birth. Peripartum hysterectomy is the last resort to tackle such complications. Our study, confirmed that bilateral internal iliac artery ligation can be a good alternative to tackle such disaster from postpartum hemorrhage and also conserve uterus of women for future reproduction.