Reverse osmosis (RO) membrane-based domestic water desalination/purification units have gained wide acceptance even in India. Unfortunately, the recovery of product water from these units varies between 30 and 60% depending on total dissolved solid (TDS) of the feed water. Such low recovery of product water during desalination is a serious problem, in view of water scarcity. Further, the problem of tap water salinity is increasing owing to groundwater depletion. Alternatively, electrodialysis (ED)-RO hybrid process offers high recovery of product water from brackish water without compromising on water quality. In hybrid process, ED unit operates in high TDS region (low system resistance and thus high efficiency), and RO system operates in low TDS region, to reduce salinity load on membrane.