Abstract: Placental retention is seen in 2% of women post-delivery which accounts for around 10% of the maternal deaths worldwide. This is mostly seen in developing countries with inadequate access to medical services & lack of facility for management of emergency obstetrical cases. The conventional treatment method for retained placenta was always to be the manual removal of retained placenta (MROP) till the present. Out of many complications of MROP, the major complications were severe postpartum hemorrhage, puerperal sepsis, perforations of uterus and uterine inversion. Placenta is said to be retained if it is not able to deliver spontaneously even after 30 min of the birth of the baby. There are so many traditional methods like the use of syntocinon, umbilical injection of oxytocin, use of relaxants like nitroglycerine, controlled cord traction (CCT), massaging of uterus and acupuncture are there but have no substantial evidence of hundred percent effectiveness. There is a lack of consensus on the optimal strategy to manage MROP and reduce maternal mortality and morbidity. Additionally MROP is also not complication-free which can be solely trusted as a single management strategy. Henceforth in a Hospital at Berlin, a new technique has developed by using an existing concept of operation of the windmill for the delivery of retained placenta, which was found out to be effective for now. This technique follows the theory of vector principle for application. For this paper, the researcher has also developed a conceptual model by using the concept of 3 number of theories named Engel’s biopsychosocial model, Jane Watson's theory of human caring & Pender's health promotion model