fashion, and to write concisely. The Union Public Service Commission, commonly abbreviated as UPSC, is India's premier central recruiting agency. It is responsible for appointments to and examinations for All India services and group A & group B of Central services. While Department of Personnel and Training is the central personnel agency in India. UPSC CSE conjointly known as Indian Administrative Service (IAS) is a recruitment examination for class I administrative officers. This exam is conducted once a year in 3 stages – Prelims, Mains and Interview.