Lithium sulfur battery has become a hot topic in the current scenario of the ever-increasing energy demand of the world. The availability and non-toxicity of sulfur made the lithium sulfur battery more attractive in scientific research. The high theoretical capacity of the sulfur has been chained by its insulating nature. In order to overcome this hurdle research is directed towards carbon based sulfur composites. The other main issue of lithium sulfur battery is the shuttle mechanism, the intermediate polysulfides dissolves into the electrolyte, which leads to the active material loss. This problem can be tackled by modification on the configuration of the cell. The partially exfoliated multiwalled carbon nanotube coated with a conductive polymer (PEDOT:PSS) can provide a conducting support to the sulfur and can trap the polysulphides at cathode, even though the complete blocking of the polysulphides to the anode still remains a challenge. The modification of the separator with the same polymer will trap the remaining polysulphides and protect the anode from the dendrite formation as well as the deposition of polysulphides. The effective modification of the battery leads to the improved performance, with high energy and power density. The polymer modified cathode and separator helped to prevent the polysulphide deposition on the anode side, and to achieve a capacity of 1000 mAh/g(s).