प्रारंभिक परीक्षा, 2025: एक विश्लेषणात्मक अध्ययन (सेट- B) हिंदी : https://www.drishtiias.com/hindi/prelims/prelims-analysis/preliminary-examination-2025-an-analytical-study-set-b English: https://www.drishtiias.com/prelims-analysis/2025-prelims-analysis