In this paper, a methodology for gait rehabilitation, combines over-ground walking, body weight support, pelvic control, and gait assistance are introduced and the integrated platform has been developed. This paper also discusses the gap of state-of-the-art research in gait rehabilitation. Systems like Lokomat and Kineassist were studied and discussed. Initial testing and EMG experiments have been carried out on the developed platform. The results of EMG show that the developed robotic orthosis effectively reduces the effort requirement during assisted gait locomotion. Future testing on the effect study of pelvic control and over-ground walking is being conducted.