In KAS Exam covered by Kerala PSC, the questions from International relations generally asks from the following topics:

• India’s Foreign Policy
• India and it’s neighbour
• International Organisations
• International Treaties and Forums their structure and mandate

For the convenience of the KAS preparation, we can divide the topics into the followings topics. 

India’s Foreign Policy

• Evolution of the foreign policy of India.
• India’s foreign policy during Post-independence
• India’s foreign policy during Cold War
• India’s foreign policy during NAM
• India’s foreign policy during the Fall of the USSR
• India’s foreign policy during Post 9/11
• India’s foreign policy during Current events
• Bilateral relations between India and its neighbours
• Bilateral relations between India and US 
• Bilateral relations between India and Russia 
• Bilateral relations between India and Israel 

India and it’s neighbour

• Evolution of the foreign policy of India with its neighbour
• Bilateral relations between India and China, Pakistan, Bangladesh, Srilanka, Maldives etc.  
• India’s foreign policy during the Wartime 

International Organisations

• India and various organizations such as UN, G20, ASEAN, GCC, IMF, EU, World Bank, ISA, BIMSTEC etc.
• India and the five UNSC members  
• Role of India in the major international organizations.

International Treaties and Forums their structure and mandate

• United Nations Convention on the Law of the Sea (UNCLOS) 
• United Nations Convention on Biological Diversity (CBD)
• United Nations Framework Convention on Climate Change (UNFCCC)
• United Nations Convention to Combat Desertification (UNCCD)
• UN Convention on the Rights of the Child (CRC)
• UN Convention against Torture (UNCAT)
• United Nations Genocide Convention
• 1951 UN Convention on the Status of Refugees 
• United Nations Convention on International Settlement Agreements (UNISA)
• UN Convention against Transnational Organized Crime (UNTOC)
• Kigali Amendment to Montreal Protocol
• Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal
• Paris Agreement
• Ramsar convention
• Climate Breakthroughs Summit
• World Solar Technology Summit (WSTS)
• Open Sky Agreement
• Istanbul Convention on violence against women
• Heart of Asia-Istanbul Process
• OECD-G20’s ‘Inclusive Framework’ tax deal
• Atlantic Charter
• Chemical Weapons Convention
• 1961 Single Convention on Narcotic Drugs
• European Convention on Human Rights protocol
• Doha Agreement
• Treaty on the Prohibition of Nuclear Weapons (TPNW)
• Iran Strategic Cooperation Pact
• China-EU–UK Trade and Cooperation Agreement (TCA)