If you are aiming to become an officer through the Combined Defence Services Examination, your date of birth decides which academies you can apply for before anything else. The CDS exam feeds four academies, the Indian Military Academy (IMA), the Indian Naval Academy (INA), the Air Force Academy (AFA) and the Officers’ Training Academy (OTA), and each one has its own age window and marital status rule. This guide explains the CDS 1 2027 age limit for every academy, the expected date of birth (DOB) ranges, worked examples, marital status rules and accepted DOB proof.
Status as on 10 November 2026: The CDS (I) 2027 notification has not been released yet. As per the UPSC Programme of Examinations for 2027, the notification is scheduled for 2 December 2026, the last date to apply is 22 December 2026 and the written exam is scheduled for 11 April 2027. The age limits below are based on the official CDS (I) 2026 notification. The 2027 DOB ranges are expected windows worked out from that pattern, not official figures. This article will be updated as soon as UPSC publishes the CDS (I) 2027 notification.
CDS 1 2027 Age Limit at a Glance (Expected)
In the CDS (I) cycle, the IMA, INA and AFA courses begin in January of the following year, and the OTA course begins in April. In the CDS (I) 2026 notification, these were January 2027 and April 2027. If UPSC follows the same pattern, CDS (I) 2027 will feed courses starting in January 2028 (IMA, INA, AFA) and April 2028 (OTA), and every DOB window will move forward by exactly one year.
| Academy / Course | Age Band | Expected DOB Range for CDS 1 2027 (both dates inclusive) | Who Can Apply |
|---|---|---|---|
| Indian Military Academy (IMA), Dehradun | 19 to 24 years | 2 January 2004 to 1 January 2009 | Unmarried men |
| Indian Naval Academy (INA), Ezhimala | 19 to 24 years | 2 January 2004 to 1 January 2009 | Unmarried men |
| Air Force Academy (AFA), Dundigal | 20 to 24 years | 2 January 2004 to 1 January 2008 | Men; unmarried if below 25 |
| AFA with a valid DGCA Commercial Pilot Licence | 20 to 26 years | 2 January 2002 to 1 January 2008 | Men; unmarried if below 25 |
| Officers’ Training Academy (OTA), Chennai – SSC Men | 19 to 25 years | 2 January 2003 to 1 January 2009 | Unmarried men |
| OTA, Chennai – SSC Women (Non-Technical) | 19 to 25 years | 2 January 2003 to 1 January 2009 | Unmarried women, issueless widows and issueless divorcees who have not remarried |
Official Age Limits in the Latest CDS 1 Notification (CDS I 2026)
To understand where the 2027 windows come from, here are the official DOB ranges from the CDS (I) 2026 notification (Examination Notice No. 4/2026-CDS-I, dated 10 December 2025). That cycle fed the IMA, INA and AFA courses commencing in January 2027 and the OTA courses commencing in April 2027.
| Academy / Course | Official DOB Range in CDS (I) 2026 |
|---|---|
| IMA – unmarried men | Born not earlier than 2 January 2003 and not later than 1 January 2008 |
| INA – unmarried men | Born not earlier than 2 January 2003 and not later than 1 January 2008 |
| AFA – 20 to 24 years as on 1 January 2027 | Born not earlier than 2 January 2003 and not later than 1 January 2007 |
| AFA – valid and current DGCA CPL holders (up to 26 years) | Born not earlier than 2 January 2001 and not later than 1 January 2007 |
| OTA – SSC Men | Born not earlier than 2 January 2002 and not later than 1 January 2008 |
| OTA – SSC Women (Non-Technical) | Born not earlier than 2 January 2002 and not later than 1 January 2008 |
The CDS (II) 2026 notification uses the same age bands, 19 to 24 years for IMA and INA, 20 to 24 years for AFA and 19 to 25 years for OTA, with the reference dates moved to the July cycle. Only the 2027 notification can confirm the new dates.
CDS 1 2027 Age Limit for IMA
The Indian Military Academy, Dehradun, trains Gentlemen Cadets for a Permanent Commission in the Indian Army. The age band is 19 to 24 years, and only unmarried male candidates are eligible.
- Expected DOB range for CDS 1 2027: 2 January 2004 to 1 January 2009.
- Minimum age: you must be born on or before 1 January 2009 (expected).
- Maximum age: you must be born on or after 2 January 2004 (expected).
CDS 1 2027 Age Limit for INA
The Indian Naval Academy, Ezhimala, takes CDS candidates for the Executive Branch (General Service)/Hydro. The age band is the same as IMA, 19 to 24 years, and only unmarried male candidates can apply. Remember that INA also needs a degree in engineering, so check the educational condition along with your age.
- Expected DOB range for CDS 1 2027: 2 January 2004 to 1 January 2009.
CDS 1 2027 Age Limit for AFA
The Air Force Academy has the narrowest window because it trains candidates for the Flying Branch. The age limit is 20 to 24 years as on the date of course commencement. In CDS (I) 2026, this was counted as on 1 January 2027. For CDS 1 2027, it is expected to be counted as on 1 January 2028.
- Expected DOB range for CDS 1 2027: 2 January 2004 to 1 January 2008.
- CPL relaxation: the upper age limit is relaxable up to 26 years for candidates holding a valid and current Commercial Pilot Licence issued by the DGCA (India). The expected DOB range for them is 2 January 2002 to 1 January 2008.
- Note that the AFA lower limit is 20 years, not 19. A candidate who is eligible for IMA may still be too young for AFA.
Candidates who want AFA must give it as their first choice in the application, because AFA candidates go through the Computer Pilot Selection System (CPSS) and Air Force medicals. As per the CDS (I) 2026 notification, AFA chosen as a second or third preference is treated as invalid.
CDS 1 2027 Age Limit for OTA (Men and Women)
The Officers’ Training Academy, Chennai, trains candidates for a Short Service Commission (Non-Technical) in the Army. It has the widest window, 19 to 25 years, and it is the only CDS academy open to women.
- SSC Men – expected DOB range for CDS 1 2027: 2 January 2003 to 1 January 2009 (unmarried men).
- SSC Women (Non-Technical) – expected DOB range for CDS 1 2027: 2 January 2003 to 1 January 2009.
- Women candidates are considered only for OTA and must give OTA as their only choice.
- Men applying for both a Permanent Commission (IMA, INA or AFA) and OTA must give OTA as their last preference.
Marital Status Rules for Each Academy
Age and marital status appear together in the CDS notification, and both are checked. Here is what the latest official CDS (I) notification says for each academy:
| Academy | Marital Status Condition |
|---|---|
| IMA | Unmarried male candidates only |
| INA | Unmarried male candidates only |
| AFA | Candidates below 25 years of age must be unmarried. Married candidates aged 25 or above may apply, but during training they will not get married accommodation and cannot live with family outside the premises |
| OTA – SSC Men | Unmarried male candidates only |
| OTA – SSC Women | Unmarried women, issueless widows who have not remarried, and issueless divorcees (with divorce documents) who have not remarried |
Two more rules apply to every academy:
- Male divorcees and widowers are not treated as unmarried for IMA, INA, AFA or OTA, so they are not eligible for these courses.
- Candidates must undertake not to marry until they complete their full training. A candidate who marries after the date of application will not be selected for training, even if successful in the exam. A candidate who marries during training is discharged and must refund the expenditure incurred on them by the Government.
DOB Examples for CDS 1 2027 (Based on Expected Ranges)
| Candidate’s DOB | IMA / INA | AFA | AFA (with valid CPL) | OTA (Men / Women) |
|---|---|---|---|---|
| 1 January 2004 | Not eligible (over-age by one day) | Not eligible | Eligible | Eligible |
| 2 January 2004 | Eligible (first valid date) | Eligible | Eligible | Eligible |
| 15 August 2005 | Eligible | Eligible | Eligible | Eligible |
| 20 March 2008 | Eligible | Not eligible (under 20) | Not eligible | Eligible |
| 1 January 2009 | Eligible (last valid date) | Not eligible | Not eligible | Eligible (last valid date) |
| 2 January 2009 | Not eligible (under-age) | Not eligible | Not eligible | Not eligible |
| 10 June 2003 | Not eligible (over-age) | Not eligible | Eligible | Eligible |
| 1 January 2003 | Not eligible | Not eligible | Eligible | Not eligible (over-age by one day) |
One day can change the answer, so compare your exact DOB with each range. Educational eligibility (a degree for IMA and OTA, an engineering degree for INA, and a degree with Physics and Mathematics at 10+2 or a B.E. for AFA) is a separate condition and must be met as well.
Is There Any Age Relaxation in CDS 1 2027?
The CDS notification does not give any category-based age relaxation of the kind seen in many civilian examinations. The age limits apply in the same way to all candidates, irrespective of category. The only relaxation in the latest notification is for AFA candidates who hold a valid and current DGCA Commercial Pilot Licence, whose upper age limit is relaxed to 26 years.
Which Date of Birth Does UPSC Accept?
- UPSC accepts only the DOB entered in the Matriculation/Secondary School Examination Certificate, or in a certificate recognised by an Indian university as equivalent, or in a certified extract from a university’s Register of Matriculates.
- Horoscopes, affidavits, birth extracts from a Municipal Corporation, service records and similar documents are not accepted.
- If your Class 10 certificate does not show your date of birth, you need a certificate from the Headmaster or Principal of your school showing the DOB recorded in the institution’s admission register.
- Once you claim a DOB in the online application, no change is allowed later, at this or any subsequent examination. Any variation found at a later stage can lead to disciplinary action.
CDS 1 2027 Important Dates (UPSC Calendar)
| Event | Date |
|---|---|
| CDS (I) 2027 notification | 2 December 2026 (scheduled) |
| Last date to apply | 22 December 2026 (scheduled) |
| CDS (I) 2027 written exam | 11 April 2027 (scheduled) |
| Expected course commencement – IMA, INA, AFA | January 2028 (to be confirmed in the notification) |
| Expected course commencement – OTA | April 2028 (to be confirmed in the notification) |
UPSC states that the dates in its annual programme are liable to change if circumstances warrant, so keep checking the official UPSC website.
Frequently Asked Questions
1. What is the CDS 1 2027 age limit for IMA?
The IMA age band is 19 to 24 years for unmarried men. Based on the official CDS (I) 2026 pattern, the expected DOB range for CDS 1 2027 is 2 January 2004 to 1 January 2009. The exact range will be confirmed in the CDS (I) 2027 notification.
2. What is the CDS 1 2027 age limit for OTA?
OTA has the widest window, 19 to 25 years, for both SSC Men and SSC Women (Non-Technical). The expected DOB range for CDS 1 2027 is 2 January 2003 to 1 January 2009.
3. What is the CDS 1 2027 age limit for the Air Force Academy?
AFA candidates must be 20 to 24 years old on the course commencement date. The expected DOB range for CDS 1 2027 is 2 January 2004 to 1 January 2008, and up to 26 years (born 2 January 2002 to 1 January 2008) for holders of a valid DGCA Commercial Pilot Licence.
4. Can married candidates apply for CDS 1 2027?
Married men cannot apply for IMA, INA or OTA. For AFA, candidates below 25 must be unmarried, while married candidates aged 25 or above may apply under the conditions in the notification. For OTA women, unmarried women and issueless widows or divorcees who have not remarried are eligible.
5. Has the CDS 1 2027 notification been released?
Not yet. As of 10 November 2026, the UPSC calendar schedules the CDS (I) 2027 notification for 2 December 2026, with the exam on 11 April 2027. This article will be updated with the official DOB ranges once the notification is published.
Conclusion
The CDS 1 2027 age limit depends on the academy you choose. Based on the latest official pattern, IMA and INA are expected to accept unmarried men born between 2 January 2004 and 1 January 2009, AFA is expected to accept candidates born between 2 January 2004 and 1 January 2008 (from 2 January 2002 for CPL holders), and OTA is expected to accept men and women born between 2 January 2003 and 1 January 2009. Check your Class 10 certificate today, map your date of birth against each academy, and plan your preferences accordingly.
These 2027 windows are expected, not official. UPSC is scheduled to publish the CDS (I) 2027 notification on 2 December 2026. Read it carefully before you apply, and keep an eye on this page, which will be updated with the official dates.
