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Union Public Service Commission (UPSC)

UPSC IRS Customs & Excise Answer Key 2027 — Official & Expected

Download official answer keys, challenge wrong answers, and check your expected score

Total Questions200 Q
Marking SchemePrelims: +2 per correct, -0.66 for wrong; Mains: descriptive, no negative; Interview: 275 marks
Expected DateMay–June 2027 (Prelims)

Answer Key Release Timeline

Exam Conducted

Done

Provisional Key Released

Expected: May–June 2027 (Prelims)

Objection Window

Upcoming

Final Key Released

Upcoming

How to Download Official Answer Key

1

Visit official website of Union Public Service Commission (UPSC)

2

Navigate to the "Answer Key" section on the homepage

3

Select your exam date and shift from the dropdown

4

Download the PDF answer key to your device

5

Match each response with your recorded answers

Note: Official download available on Union Public Service Commission (UPSC) website after exam date.

Expected Answer Key — Subject-wise Breakdown

SubjectQuestionsCorrect Answer PatternDifficulty
General Studies (Prelims & Mains)40Mixed (A/B/C/D)Very Hard
CSAT40Mixed (A/B/C/D)Very Hard
Optional Subject40Mixed (A/B/C/D)Very Hard
Customs & Excise Law40Mixed (A/B/C/D)Very Hard
Essay & Ethics40Mixed (A/B/C/D)Very Hard
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Disclaimer: This is a provisional estimated breakdown. Official answer key will be published by Union Public Service Commission (UPSC).

Expected Score Calculator

Marking scheme: +4 per correct, 1 per wrong

How to Challenge Wrong Answers

1

Download Objection Form

Get the official objection form from the conducting body's website

2

Pay Challenge Fee

₹200 per question challenged. Fee is refunded if objection is accepted

3

Submit with Proof

Attach supporting proof (books, previous papers) for each challenged question

4

Await Resolution

Result declared after expert review — reflected in final answer key

Frequently Asked Questions

Prepare for UPSC IRS Customs & Excise with Full Mock Tests

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