UPSC PSIR Optional Books 2023: Aspirants must choose the right UPSC Political Science books to prepare for the upcoming IAS mains exam. Moreover, PSIR is a scoring optional paper with approximately 40 ...

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 ...

FIRST IAS Institute is ranked the best PSIR optional coaching in Delhi, followed by Tutor Uncle, Shubhra Ranjan IAS, Vajiram & Ravi, and Plutus IAS. Trending Photos The selection of the correct PSIR ...

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.