Universal Postal Union (UPU): The Universal Postal Union (UPU) is a specialized agency of the United Nations that serves as the primary international organization responsible for coordinating and regulating postal services worldwide. The Universal Postal Union (UPU) is also important for UPSC Prelims Exam and UPSC Mains Exam (GS Paper 2- International Relations, International Organizations … Continue reading Universal Postal Union (UPU), Cabinet approved Establishment UPU Regional Office in New Delhi