Aim : To assess the level of knowledge and effectiveness of BOM method on breast milk production among mothers underwent cesarean Section. Objective : (i) To assess the pre and post test level of knowledge regarding BOM method on breast milk production among mothers underwent cesarean section in experimental and control group.(ii)To assess pre and post test level of breast milk production among mothers underwent cesarean section in experimental and control group.(iii) To evaluate the effectiveness of BOM method on breast milk production among mothers underwent cesarean Section in the experimental group .(iv) To compare post test level of breast milk production between experimental and control group. (v) To correlation between level of breast milk production and latch technique on BOM method among mothers underwent cesarean section in experimental and control group. (vi) To find association between the post level of breast milk production among mother underwent cesarean section with selected demographic variables in the experimental and control group