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Evidence-Based Dispute Tracking

UPSC Prelims 2026 Disputed Questions

Track every question where coaching institutes disagree on the correct answer. We compare answer keys from all major institutes, trace each dispute to primary sources, and provide evidence-based analysis.

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What Are Disputed Questions?

Understanding why coaching keys differ and what it means for your score.

Why Do Coaching Keys Differ?

  • •Some UPSC questions have ambiguous phrasing where two options appear equally valid
  • •Different reference sources sometimes present conflicting information
  • •Statement-based questions (e.g., “which of the above are correct”) involve judgment calls on edge cases
  • •Coaching institutes prepare keys under time pressure on exam day, increasing error margin

The 2026 Game-Changer: Provisional Answer Key

  • ✓UPSC now releases an official provisional answer key after Prelims
  • ✓Candidates can file evidence-based objections via the QPRep portal
  • ✓An expert panel reviews objections and may revise answers or drop questions
  • ✓This means disputed questions can now be formally resolved before the final result

How We Track Disputes

Our methodology for identifying, analyzing, and resolving disputed questions.

1

Collect Answer Keys

Within hours of the exam, we gather official answer keys from Vision IAS, Vajiram and Ravi, Forum IAS, Insights IAS, and UnlockIAS.

2

Cross-Compare All 100 Questions

We run an automated comparison across all keys to flag every question where at least two institutes differ on the correct option.

3

Academic Evidence Review

For each disputed question, our team traces the answer back to primary sources — NCERTs, official government publications, standard reference texts.

4

Publish Analysis

Each disputed question is published with the split across institutes, evidence for each option, and our assessed correct answer with reasoning.

Institutes compared: Vision IAS, Vajiram and Ravi, Forum IAS, Insights IAS, and UnlockIAS. We add more sources as they become available on exam day.

Disputed Questions

Questions where coaching institutes disagree on the correct answer.

Coming After the Exam

Disputed questions will be updated here after the UPSC Prelims 2026 exam on May 24, 2026. Check back within 24 hours of the exam for a complete dispute analysis with evidence for each question.

Exam Date: May 24, 2026
Analysis: Within 24 hours

Why Disputed Questions Matter

Even a few disputed questions can significantly impact the cutoff and your result.

Cutoff Impact

Even 1-2 disputed questions can shift the Prelims cutoff by 2-4 marks. With the UPSC marking scheme (+2 for correct, -0.67 for wrong), the swing per question is 2.67 marks. For borderline candidates, this is the difference between clearing Prelims and missing out.

The QPRep Objection Portal

From 2026, UPSC allows candidates to formally challenge answers on the provisional key. If your analysis of a disputed question is backed by strong evidence, you can submit an objection. Valid objections may lead to answer changes or the question being dropped entirely.

Score Estimation

Disputed questions make score estimation uncertain. We recommend calculating a best-case and worst-case score range. Our score calculator lets you flag disputed questions and automatically computes both scenarios to give you a realistic range.

Related Pages

Explore more tools and analysis for UPSC Prelims 2026.

UPSC Prelims 2026 Answer Key

Complete answer key for GS Paper 1 with coaching institute comparisons.

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Answer Key Objection Guide

Step-by-step guide to filing objections on the QPRep portal.

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Provisional Answer Key

Everything about the new UPSC provisional answer key system.

View page

Score Calculator

Calculate your Prelims score with dispute-aware best/worst case scenarios.

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Compare Answer Keys

Side-by-side comparison of answer keys from all major coaching institutes.

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Expected Cutoff 2026

Category-wise expected cutoff analysis factoring in disputed questions.

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Frequently Asked Questions

Common questions about UPSC Prelims disputed questions and how they affect your score.

What are disputed questions in UPSC Prelims?
Disputed questions are those where major coaching institutes disagree on the correct answer. After the Prelims exam, institutes release their own answer keys independently, and sometimes two or more reputable institutes mark different options as correct for the same question. These mismatches are called "disputes."
How many questions are typically disputed in UPSC Prelims?
Historically, UPSC Prelims papers have 3 to 8 disputed questions per exam. Some years have had as many as 10+ disputes. The exact number depends on the difficulty and ambiguity of the paper. Questions involving factual nuances, overlapping options, or interpretation-dependent phrasing are most prone to disputes.
How do disputed questions affect the cutoff?
Even 1-2 disputed questions can shift the Prelims cutoff by 2-4 marks. Since each correct answer is worth 2 marks and each wrong answer carries a penalty of 0.67 marks, the swing between getting a disputed question right vs. wrong is 2.67 marks. With multiple disputes, the cumulative impact on the cutoff can be significant.
What happens to disputed questions now that UPSC has a provisional answer key?
Starting from 2026, UPSC releases a provisional answer key and allows candidates to file objections through the QPRep portal. If an objection against a disputed question is found valid by the expert panel, UPSC may revise the answer or drop the question entirely. The final answer key published after the objection window is what determines scores and cutoff.
Which coaching institute answer keys are most reliable?
No single coaching institute is correct 100% of the time. Historically, reputable institutes like Vision IAS, Vajiram and Ravi, Forum IAS, and Insights IAS maintain high accuracy, but they all occasionally get questions wrong. That is why comparing multiple keys and looking at the evidence for each option is more reliable than trusting any single source.
Should I count disputed questions as correct or incorrect for score estimation?
For score estimation, calculate two scenarios: a best-case score (counting all disputed questions where your answer matches at least one institute as correct) and a worst-case score (counting them as wrong). Your actual score will likely fall in this range. Our score calculator handles this automatically when you flag disputed questions.

Estimate Your Prelims Score

Use our score calculator to get best-case and worst-case estimates, with dispute-aware scoring that accounts for questions where coaching keys disagree.

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