Knowing the exam pattern and the syllabus for PSIR optional in UPSC CSE exam is the first step towards preparing for it. If you know the syllabus well, consider 5% of your battle is already won.
UPSC CSE is one of the known government competitive exams in India: conducted in three phases Preliminary, Mains, and Interview. In the UPSC main exam, there is an optional paper and PSIR is one of ...