This paper discusses the concept of synergies within the context of Climate policies. It argues that synergistic policies are relevant both due to amplification of impact and enhancement of efficiency (lower cost to achieve same policy objective). Using simulations of cost and impact of climate policy packages, the paper provides quantitative evidence of policy synergies in three countries in Asia (China, India and Indonesia) using the Energy Policy Simulator (EPS). It finds that synergistic design of policies can lead to significant reduction of policy cost by over 40% and notable increase in impact of policies over 20%. It underscores the need for policy makers to identify and harness policy synergies through working with coalition of stakeholders and institutional mechanisms for coordination that helps break down silos.