UPSC Exam Calendar 2025 Union Public Service Commission (UPSC) has given a tentative calendar of various exams Reserved for UPSC RTs/ Exam, Engg Service (Prelims) Exam, Combined Geo-Scientist (Preliminary) Exam, CBI (DSP) LDCE, CISF AC(EXE) LDCE & other to be held in 2025. This information has also been given in the calendar of UPSC when