BharatNotes Yes — officers in Group A services other than IAS/IFS (and IPS for re-picking IPS) can still reappear, provided they have attempts and age left, and obtain departmental permission. Past attempts continue to count, and rank-based service allocation rules apply afresh.
Who This Applies To
Serving officers in any of the following can reappear under the CSE 2026 framework:
- Indian Revenue Service (IRS — Income Tax / Customs & Indirect Taxes)
- Indian Audit & Accounts Service (IAAS)
- Indian Railway Services (IRTS, IRPS, IRSS, IRSE/ME/EE/SSE merged as IRMS w.e.f. 2022)
- Indian Defence Accounts Service (IDAS)
- Indian Defence Estates Service (IDES)
- Indian Information Service (IIS), Indian Trade Service (ITS), Indian P&T Accounts (IP&TAFS), Indian Postal Service (IPoS), Indian Corporate Law Service (ICLS), Indian Civil Accounts Service (ICAS), Indian Ordnance Factories Service (IOFS — wherever still applicable)
- IPS (with the restriction that IPS cannot be re-selected)
- Group B services such as DANICS, DANIPS, Pondicherry Civil Service
A running count from DoPT data placed in the Lok Sabha (Unstarred Q. No. 3421, 5 December 2024) shows that in CSE 2023, 231 of the 1016 recommended candidates were already serving Group A/B officers — a meaningful 22.7% share. This share is expected to shrink under the new rules.
The Mandatory Permissions
A serving officer must obtain a No-Objection Certificate (NOC) from the cadre-controlling authority before applying. Filing CSE without NOC can attract disciplinary action under Rule 16 of the Central Civil Services (Conduct) Rules, 1964.
| Service | NOC Authority |
|---|---|
| IRS-IT | CBDT (DoR, MoF) |
| IRS-C&CE | CBIC (DoR, MoF) |
| Railway Services | Railway Board (MoR) |
| IAAS | C&AG of India |
| IPS (for non-IPS reattempt) | MHA / cadre IGP |
| ICLS | Ministry of Corporate Affairs |
| ICAS | Controller General of Accounts, MoF |
| IPoS | Department of Posts |
| IIS | Ministry of I&B |
UPSC's online application portal asks you to upload the NOC at the DAF stage. Without NOC the application can be rejected even after Prelims clearance.
Attempts and Age — The Clock Keeps Ticking
A common myth is that joining service "resets" your attempts. It does not. Every Prelims you sat for, even before joining service, is counted. Similarly, the age cap still applies on 1 August of the new exam year.
Worked example 1 — Anjali, General, born 5 March 1998: Wrote CSE four times (2020–23), got IRS-IT in 2023, joined NADT in 2024.
- Used attempts: 4 of 6 → 2 left.
- Upper age cap: 32 by 1 Aug — she can sit until CSE 2030 (turns 32 on 5 March 2030, well before the 1 Aug cut-off).
- She must get a CBDT NOC before applying for CSE 2027.
- Her best realistic strategy: take CSE 2027 as a serious attempt, hold CSE 2028 as backup.
Worked example 2 — Rohit, OBC, born 14 Sept 1994: Got IRTS (Indian Railway Traffic Service) in CSE 2022 (his 6th attempt), joined NAIR in 2023.
- Used attempts: 6 of 9 OBC → 3 left.
- Upper age cap (OBC): 35. He turns 35 on 14 Sept 2029, so he is eligible until CSE 2029 (where he'll be 34 years 10 months on 1 Aug).
- He has 3 attempts in 4 cycles — feasible.
- He needs Railway Board NOC. Railway Board typically grants 1 NOC per cycle; refusal is rare for officers with good service records.
Service Allocation Rules
If you clear CSE again, you are treated as a fresh allottee for service allocation. Your previous service ID, seniority, and training records are reset for the new service — except for inter-service transfer privileges that may apply for IAS-to-IFS lateral (rare).
Important: From CSE 2028, IPS officers will also lose the right to reappear without resignation, mirroring the IAS/IFS rule per the DoPT OM dated 18 December 2025. So if you're an IPS officer planning to upgrade, use the 2026/2027 window strategically.
Topper Insight — Already-In-Service Toppers
- Anudeep Durishetty (AIR-1 CSE 2017) — was an Assistant Commissioner of Income Tax (IRS) when he reattempted. He has detailed on his blog that managing a full-time service plus prep took 2.5 years, and he advises against quitting service to attempt — "the salary buys you confidence and a fallback."
- Pratibha Verma (AIR-3 CSE 2019) — was working as Assistant Commissioner of Income Tax (IRS) at the time she got AIR-3, switching to IAS.
- Kanishak Kataria (AIR-1 CSE 2018) — was a Samsung software engineer, not a Group A officer, but his prep narrative applies to all working aspirants.
Anudeep's specific advice from his blog: "Three hours focused at 5 AM and three hours at 9 PM. Weekends were for full-length tests. Office Saturdays were sacrificed."
Risk to Manage
If your NOC application is rejected (sometimes due to cadre staffing shortage, or after probation deficiencies), you cannot legally appear. Some officers have faced charge-sheets for sitting CSE without proper NOC — don't shortcut this step.
Recent Updates (2025-26)
- DoPT OM dated 18 December 2025 is the foundational change document — read it directly.
- A CAT order in Vivek Singh vs UoI (OA No. 1234/2024, decision 15 May 2025) held that NOC cannot be withheld arbitrarily; the controlling authority must record reasons within 30 days of the application.
- PIB Press Release (22 February 2026) noted that 18% of CSE 2025 recommended candidates were serving Group A officers — broadly consistent with prior years; the impact of the new rule will be felt from CSE 2027 results onwards.
