This chapter explores the intersection of Nationally Determined Contributions (NDCs) and sustainable development goals in the context of South Asia, with an emphasis on net zero emissions. It provides an overview of NDCs and their role in global climate agreements like the Paris Agreement, emphasizing the significance of net zero emissions for mitigating climate change. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, the study uses a systematic literature review method to analyze fifty-six (56) articles and identify critical insights. The research investigates the current status of NDCs in South Asia, including country profiles, commitments, progress, and challenges. It also explores strategies for integrating Sustainable Development Goals (SDGs) with NDCs, sectoral approaches to net zero, policy frameworks, financial mechanisms, technology and innovation, monitoring and verification systems, and case studies of successful initiatives. We propose strategic policy recommendations for policymakers to enhance the alignment of NDCs with sustainable development goals. Additionally, areas for future research are identified, including impact assessment, technology innovation, policy integration, behavioral change, and climate justice. The paper concludes by emphasizing the importance of collective action and collaboration in advancing South Asia toward a sustainable and resilient future.