The Constitution of India incorporates four Directive Principles of State Policy aimed at fostering international peace and security: 1. Promotion of International Peace and Security (Article 51): The State is mandated to cultivate international peace and security by fostering harmony and goodwill among nations. 2. International Cooperation (Article 51): India is dedicated to nurturing respect for international law and obligations to advance peace and cooperation between states. 3. Support for the United Nations (Article 51): The State is tasked with endeavoring to bolster the United Nations and promote peace through multilateral diplomacy. 4. Combating Aggression (Article 51): India's objective is to work towards the prevention of aggression and the attainment of global stability by endorsing peacekeeping endeavors and multilateral security initiatives. Consequently, the correct option is (a).