Official announcement released by Government of India via Press Information Bureau (PIB). The Union Public Service Commission (UPSC) will close the application window for Combined Defence Services 1 today (December 30). Candidates can visit the official website upsconline.nic.in to. The Union Public Service Commission (UPSC) has published the examination timetable for the Combined Defence Services (CDS) Examination (II) 2026. The written examination will be held in three.