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OPSC updates
OPSC publishes a provisional answer key for its objective papers so candidates can audit the evaluation and object before it becomes final. This page explains the key, the objection route and how the final key drives the result.
Facts last verified 16 July 2026
How it works
OPSC releases provisional answer keys for objective papers with an objection window, then final keys after expert review — the final key governs evaluation.
The provisional key exists for transparency: it lets candidates audit the evaluation before it becomes final.
Challenge only questions where you can cite a standard reference (official syllabus source, standard textbook) — opinion-based objections are dismissed.
File within the window and keep the acknowledgement; late representations are not considered regardless of merit.
The final key incorporates accepted objections — dropped questions are handled per the notified policy, and the result is computed only from this corrected key.
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Master book
The 18-month verified master book: Jan 2025-June 2026 in one PDF with 504 source-checked facts, MCQs and revision trackers.
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One yearly pass for priority test series, eBook vault, course notes, analytics and mobile reminders.
Common questions
Yes — within the notified window after the provisional key, with references supporting each challenge.
Objective papers (like OCS prelims) — descriptive mains papers are evaluated by examiners and have no public key.
The commission's website archives keys with each exam's notices, useful for practising with previous papers.