This research based books which provides EBP for Sacro-Iliac Joint pain in pregnancy.Pregnancy not only bring the Joy of motherhood to a women but also alteration and change in the normal tone and mechanics of the Musculo skeletal system.The structures the Spine and low bark region experiences major turn over in postural alterations, altered Biomechanics, exaggerated curvature, altered weight shift and strain in the joints and muscles.The investigator concluded that TENS with exercise programme is effective for the treatment of Sacro-Iliac Joint pain pregnancy.