Observed arrival · 2026-08-30
CollectorX Brings UPSC Practice Back to the Official Record
A free UPSC Civil Services Prelims practice tool using real previous-year questions, official answer keys, exam-accurate scoring, and rated live duels.
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The practice set is limited to UPSC Civil Services Prelims General Studies Paper I questions taken from public official archives, with entries excluded when no official answer key exists. Answers are scored using the exam arithmetic of +2, −0.67, or 0, and explanations appear immediately. Its live duel system matches opponents by rating, uses a server-owned clock and four pace settings, then applies Glicko-2 after each round across thirty ranks.
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