This volume critically analyses the theories and concepts of international relations (IR), which will be instrumental in understanding IR from a non-western perspective. Owing to its emphasis on the need to decolonise the discipline of IR, alternate perspectives from the global South have been explored and discussed in detail. The book provides new insights to make the discipline more inclusive, universal and contributory to world peace and security. It lucidly enumerates on the concepts of state, sovereignty, power, conflict, security, diplomacy, human rights, development, market, inequalities, and migration from a non-Eurocentric lens, bringing distinct perspectives and experiences to the fore. Expanding on the Indian foreign policy of Vasudev Kutumbakam, it highlights India’s policy of multi-alliances and multilateralism and, also refers to India’s contributions during the COVID-19 pandemic and its drive to champion the cause of marginalised nations by reforming international institutions and pressing for development with sustainability. It is testament to India’s commitment to global security through cooperation and collective action. This book will be useful to the Departments of Political Science, Global Studies, International Studies, and South Asian studies. It will be an indispensable resource for researchers, social scientists and general readers interested to understand the theories and key concepts of IR, especially from an Indian perspective.