⚡ TL;DR

General/EWS: 6 attempts. OBC: 9. SC/ST: unlimited (within age cap of 37). PwBD: 9 attempts for Gen/EWS/OBC, unlimited for SC/ST. An attempt is counted only when you actually appear in at least one Prelims paper.

Category-wise Attempt Ceiling

Per Para 4 of the CSE 2026 Notification (4 February 2026):

CategoryMax AttemptsUpper Age Cap
General / EWS632
OBC (NCL)935
SC / STUnlimited37
PwBD – General / EWS942
PwBD – OBC945
PwBD – SC / STUnlimited47

The binding constraint is whichever comes first — attempts or age. A General candidate who has used all 6 attempts by age 28 is done; an SC candidate has unlimited attempts but still must be under 37 on 1 August of the exam year.

What Officially Counts as an Attempt

This is the most misunderstood rule in the entire eligibility framework. Per UPSC's notification and the Examination Branch FAQ:

  • Appearing in any one paper of Prelims = 1 attempt. Even if you walked into the centre, signed the attendance, and left blank — it counts.
  • Filling the form and not appearing ≠ attempt. If you applied, paid the fee, but never entered the exam hall, no attempt is consumed.
  • Disqualified candidature (e.g., for not meeting eligibility from the start) ≠ attempt.
  • Mains/Interview appearances do NOT consume an additional attempt — only Prelims does.
  • CSAT failure (i.e., not getting 33% in Paper-II) still counts as one attempt because you appeared.

Year-wise Application vs Appearance Data

The gap between applicants and appearing candidates (PIB and UPSC Annual Reports):

CycleRegisteredAppeared (Prelims)Drop-off
CSE 202110.93 lakh5.08 lakh~54%
CSE 202211.52 lakh5.73 lakh~50%
CSE 202310.16 lakh5.92 lakh~42%
CSE 20249.92 lakh~5.83 lakh~41%

The takeaway: roughly half of registrants don't appear — and they save the attempt. Don't sit through Prelims as a 'practice round' if you're under-prepared; you waste an attempt that you cannot reclaim.

Worked Example — Ravi, OBC, born 12 July 1998

  • 2020 — filled form, didn't appear → 0 attempts
  • 2021 — appeared in Prelims, failed → 1 attempt
  • 2022 — reached Interview, didn't make the list → 2 attempts
  • 2023 — appeared in Prelims → 3 attempts
  • 2024 — appeared in Prelims → 4 attempts
  • 2025 — appeared in Prelims → 5 attempts

Ravi has 4 attempts left (out of 9) and his upper age cap as OBC is 35 (born 12 Jul 1998 → turns 35 on 12 July 2033, so eligible up to CSE 2033). He has both attempts and age room — comfortable.

Worked Example — A General Candidate Running Out

If you are General, born 5 February 1996, and have appeared in CSE 2019, 2020, 2021, 2022, and 2023:

  • Attempts used: 5 of 6 → 1 left.
  • Age on 1 Aug 2026: 30 years 6 months.
  • You can sit CSE 2026, but if you don't clear, CSE 2027 is your last attempt since by 1 Aug 2027 you'll still be 31 (under 32 cap). For CSE 2028, you'd be 32 years 6 months — over the cap. So your true deadline is CSE 2027.

Topper Insight — Anudeep Durishetty, AIR-1, CSE 2017

In his widely circulated blog post 'My Failures and Lessons' (anudeepdurishetty.in), Anudeep wrote: "I cleared on my fifth attempt. The previous four taught me how to write Mains, how to time CSAT, how to read the interview board. None was wasted." He sat IRS-IT after his earlier rank before re-attempting — proof that even five attempts can end in AIR-1.

Similarly, Shakti Dubey (AIR-1 CSE 2024) cleared on her fifth attempt at age 28 — she had appeared in 2019, 2020, 2021, 2022, and 2024. (PIB Press Release, 22 April 2025; Indian Express interview, 23 April 2025.)

Special Note for Serving Officers (CSE 2026 Onwards)

Under the new CSE 2026 rules, serving IAS and IFS officers cannot reappear without resigning, regardless of attempts left. Serving IPS officers can reappear for non-IPS services but cannot re-pick IPS. See the FAQ on serving-officer reattempts for the full mechanic.

Recent Policy Change — The Khedkar Aftermath

Following the Puja Khedkar disqualification (UPSC press release, 31 July 2024), UPSC has tightened identity verification: from CSE 2025 onwards, Aadhaar-based biometric authentication is being trialled at major exam centres. While this doesn't change the attempt count, it makes impersonation-led 'extra attempts' impossible. UPSC's 2 August 2024 statement explicitly noted that any future fraud will result in lifetime debarment.

Cross-check Source

Always open the latest CSE Notification PDF and read Para 4 (Number of Attempts) verbatim — UPSC has tweaked the language slightly almost every year since 2023.

Ujiyari Ujiyari — Current Affairs