In the last decades, more and more stress is put on the electricity supply and infrastructure; thereby the need for reliable power supply resulted in the smart grid perception. Hitherto the increasing demand and peak loads lead to an increase of required grid capacity and preventing larger investments. Demand Response (DR) assumes a critical part in rescheduling of utilization by the consumer side in a smart grid environment as from their nominal consumption patterns reacting to hike in the price of electricity over time and when framework unwavering is under risk. In the proposed paper an complete analysis of DR study is made on the basis of the outlook evolved in various countries potential in energy market paradigm and a detailed scenario of various DR programs are portrayed. Further the elaborate comparisons of the programs initiated are cumulatively elucidated by different bar graphs and pie charts. This comparative analysis exhibits the present scenario of demand side management interpreted in different countries.