The UPSC Civil Services Examination has strict eligibility rules — and misunderstanding them can waste years of preparation. Every year, candidates start preparing without checking whether they'll have enough attempts left or whether their age will be within limits by the time they write the exam. Don't make that mistake.
Here's every eligibility rule for UPSC CSE, with exact numbers and edge cases.
Age Limit
| Category | Minimum Age | Maximum Age |
|---|
| General | 21 years | 32 years |
| OBC (NCL) | 21 years | 35 years (+3 relaxation) |
| SC / ST | 21 years | 37 years (+5 relaxation) |
| PwD (General) | 21 years | 42 years (+10 relaxation) |
| PwD (OBC) | 21 years | 45 years (+13 relaxation) |
| PwD (SC/ST) | 21 years | 47 years (+15 relaxation) |
| Ex-servicemen (General) | 21 years | 37 years (+5 relaxation) |
| Ex-servicemen (OBC) | 21 years | 38 years (+6 relaxation) |
| Ex-servicemen (SC/ST) | 21 years | 40 years (+8 relaxation) |
Age is counted as of August 1 of the exam year. If the exam is UPSC CSE 2026, you must be at least 21 and not more than 32 (General) on August 1, 2026.
Age Calculation Example
| Scenario | Date of Birth | Age on Aug 1, 2026 | Eligible (General)? |
|---|
| Young aspirant | Oct 15, 2004 | 21 years, 9 months | Yes (above 21) |
| Just qualifying | Aug 1, 2005 | 21 years, 0 months | Yes (exactly 21) |
| Last chance | Aug 2, 1994 | 31 years, 11 months | Yes (under 32) |
| Too old by 1 day | Aug 1, 1994 | 32 years, 0 months | No (crossed 32) |
| OBC candidate | Aug 1, 1991 | 35 years, 0 months | No (crossed 35) |
| OBC candidate | Aug 2, 1991 | 34 years, 11 months | Yes (under 35) |
Critical: Your date of birth must match your 10th class certificate. UPSC does not accept any other DOB proof.
Number of Attempts
| Category | Maximum Attempts |
|---|
| General | 6 |
| OBC (NCL) | 9 |
| SC / ST | Unlimited (till age limit) |
| PwD (General) | 9 |
| PwD (OBC) | 9 |
| PwD (SC/ST) | Unlimited (till age limit) |
What Counts as an "Attempt"?
| Scenario | Counted as Attempt? |
|---|
| Appeared for Prelims Paper 1 | Yes |
| Applied but didn't appear (absent) | No |
| Appeared but didn't clear Prelims | Yes |
| Cleared Prelims but didn't appear for Mains | Yes (Prelims appearance counts) |
| Cleared Mains but didn't appear for Interview | Yes |
| Applied, paid fee, downloaded admit card, but stayed home | No |
The moment you sit in the Prelims exam hall and mark any answer, that attempt is consumed. Even if you walk out after 5 minutes.
Planning Your Attempts
| Category | Birth Year Range (for 2026 exam) | Attempts Available | Strategic Window |
|---|
| General, born 1994 | Age 32 in 2026 | 1 attempt left (if 5 used) | Last chance — go all in |
| General, born 1998 | Age 28 in 2026 | Multiple attempts | Can start fresh, 4+ attempts possible |
| General, born 2001 | Age 25 in 2026 | 6 attempts | Best window — start now |
| OBC, born 1994 | Age 32 in 2026 | Still within 35 limit | 3 years + 9 attempts max |
| SC/ST, born 1990 | Age 36 in 2026 | Within 37 limit | 1 year + unlimited attempts |
Educational Qualification
| Requirement | Details |
|---|
| Minimum qualification | Bachelor's degree from a recognized university |
| Stream restriction | None — any stream (Arts, Science, Commerce, Engineering, Medical, Law) |
| Minimum marks | No minimum percentage/CGPA required |
| Final year students | Can appear if they expect to receive degree before Mains |
| Distance/open university | Accepted if UGC recognized |
| Foreign degree | Accepted if recognized by AIU (Association of Indian Universities) |
There is no marks cutoff for eligibility. A third-division graduate with 45% marks is as eligible as a gold medalist with 95%.
Professional Degrees
| Degree | Eligible for UPSC? |
|---|
| B.Tech / BE | Yes |
| MBBS / BDS | Yes |
| LLB | Yes |
| CA / CS / ICWA | Yes (professional degree equivalent) |
| BBA / BCA | Yes |
| B.Ed | Yes (if it's a recognized bachelor's degree) |
| Diploma (3-year) | No (not a bachelor's degree) |
| 10+2 only | No |
Nationality
| Who Can Apply | Requirements |
|---|
| Indian citizen | No restrictions |
| Subject of Nepal / Bhutan | Certificate of eligibility from GoI |
| Tibetan refugee settled before Jan 1, 1962 | With eligibility certificate |
| Person of Indian origin migrated from Pakistan/Burma/Sri Lanka/East African countries | With eligibility certificate |
For IAS and IPS: Only Indian citizens can apply (no exceptions).
For other services (IRS, IFS, etc.): Some relaxation for Nepali/Bhutanese subjects.
Services Allocated by UPSC CSE
| Service | Group | Cadre |
|---|
| IAS (Indian Administrative Service) | A | All India |
| IPS (Indian Police Service) | A | All India |
| IFS (Indian Foreign Service) | A | Central |
| IRS (IT) | A | Central |
| IRS (C&CE) | A | Central |
| IRTS (Indian Railway Traffic Service) | A | Central |
| IRAS (Indian Railway Accounts Service) | A | Central |
| IAAS (Indian Audit & Accounts Service) | A | Central |
| ICES (Indian Customs & Central Excise Service) | A | Central |
| IDAS (Indian Defence Accounts Service) | A | Central |
| + ~15 more Group A and Group B services |
Total ~1,000+ vacancies across all services annually.
Can I appear for UPSC while working in a government job?
Yes, with your employer's permission (NOC required for Mains onwards). Many candidates clear UPSC while working as Bank POs, SSC officers, Railway employees, or even IRS officers seeking IAS.
If I'm OBC but my certificate is pending, can I appear as General?
You'll be treated as General — with 6 attempts and 32-year age limit. If your OBC certificate is issued later, you can't retroactively recover consumed attempts. Apply for the certificate before your first attempt.
What if I turn 32 between Prelims and Mains?
Age is checked as of August 1 of the examination year, not the date of Prelims or Mains. If you're within the age limit on August 1, you're eligible for the entire cycle (Prelims + Mains + Interview) of that year's exam.
Can I change my date of birth for UPSC?
No. UPSC accepts only the date of birth as recorded in your 10th class (Matriculation) certificate. No subsequent change, court order, or affidavit-based modification is accepted.
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