For graduates aiming at the Indian Military Academy (IMA), Indian Naval Academy (INA), Air Force Academy (AFA) or Officers’ Training Academy (OTA), the CDS online form is the first real test. It is short, but UPSC treats it strictly: once submitted, it cannot be withdrawn, and in the latest cycles it could not be corrected either. This guide explains how to apply online for CDS 1 2027, the registration link status, the fee and the step-by-step process, based on the official rules of the CDS (I) 2026 and CDS (II) 2026 examinations.
Status as on 12 November 2026: The CDS (I) 2027 notification has not been released, so the online application for CDS 1 2027 is not open 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 exam is scheduled for 11 April 2027. The process described below is the official process of the 2026 cycles. Details for 2027, such as the fee, closing time and any change in rules, are marked as expected until UPSC publishes the CDS (I) 2027 notice. This article will be updated once the notice is out.
CDS 1 Apply Online 2027: Key Details
| Particular | Details | Status |
|---|---|---|
| Conducting body | Union Public Service Commission (UPSC) | Official |
| Mode of application | Online only | Official (2026 notices) |
| Official application portal | upsconline.nic.in | Official (2026 notices) |
| Application window | 2 December to 22 December 2026 | Scheduled in UPSC 2027 calendar |
| Closing time on the last day | 6:00 PM | Expected (6:00 PM in both 2026 cycles) |
| Application fee | Rs 200 | Expected (Rs 200 in 2026) |
| Fee exemption | Female, SC and ST candidates | Expected (as per 2026 notices) |
| Withdrawal of application | Not allowed after submission | Expected (as per 2026 notices) |
| Correction after the window closes | Not allowed | Expected (as per 2026 notices) |
| CDS (I) 2027 written exam | 11 April 2027 (Sunday) | Scheduled |
Only the window and the exam date come from the UPSC calendar for 2027; the other rows reflect the 2026 notices, which the 2027 notice will confirm or change.
Is the CDS 1 2027 Registration Link Active?
No. As on 12 November 2026, there is no CDS (I) 2027 application link because the examination notice has not been issued. UPSC opens the examination-specific application only on the day the notice is published, which is scheduled for 2 December 2026. Any website that claims to accept CDS 1 2027 applications before that date, or that asks you to pay a fee to a private account, is not genuine.
When the window opens, the application will be available only on UPSC’s online application portal, upsconline.nic.in. Notices and results are also published on the main UPSC website, upsc.gov.in. No other mode of application is accepted.
How the UPSC Online Application Portal Works
UPSC moved to a new online application system in recent cycles. According to the CDS (I) 2026 notice, the portal has four cards or modules. The first three are common to all UPSC examinations and can be completed at any time, while the fourth is specific to the examination and can be filled only while that examination’s window is open.
| Module | What You Do | When You Can Do It |
|---|---|---|
| 1. Account creation | Create your login using your email ID and mobile number | Any time |
| 2. Universal Registration | Fill basic personal details and Photo ID; a Universal Registration Number (URN) is generated | Any time |
| 3. Common Application Form (CAF) | Fill educational and other details, upload photograph and signature, and capture a live photograph | Any time |
| 4. Examination specific module | Choose academy preferences and exam centre, pay the fee and submit | Only during the CDS (I) 2027 window |
The URN stays the same for every UPSC exam, while a separate Application Number is generated for each exam; keep both safe. Since the first three modules can be done in advance, finish them before 2 December 2026 so that only the short CDS part remains when the window opens.
CDS 1 Apply Online 2027: Step-by-Step Process
The steps below follow the official CDS (I) 2026 process; screens may differ slightly in 2027.
Step 1: Read the Notice and Check Eligibility
Before opening the portal, read the CDS (I) 2027 notice once it is released and confirm that you meet the age, education and marital status conditions for each academy you plan to choose. The expected date-of-birth windows for this cycle are covered in detail in our guide to the CDS 1 age limit 2027, so this article does not repeat them.
Step 2: Create Your Account
On upsconline.nic.in, create an account using an email ID and mobile number that you will keep active for at least a year. UPSC uses them for OTPs and all communication.
Step 3: Complete Universal Registration (URN)
Fill your name, date of birth, parents’ names, gender and the details of one Photo ID. Enter your name and date of birth exactly as they appear in your Class 10 (Matriculation or Secondary School) certificate. After you lock this profile, the URN is generated.
Step 4: Fill the Common Application Form
Enter your educational qualifications and other details, upload your photograph and signature, and capture a live photograph through your webcam or phone camera. The notice warns that both the uploaded photograph and the live photograph must be clear, as per the photo instructions given on the portal.
Step 5: Open the CDS (I) 2027 Examination Module
Once the window opens on the scheduled date, select the CDS (I) 2027 examination and fill the examination specific details.
Step 6: Select the Examination Centre
Choose your exam centre. In the CDS (I) 2026 notice, every centre except Chennai, Dispur, Kolkata and Nagpur had a ceiling on the number of candidates, and centres were allotted on a first-apply, first-allot basis. Once a centre was full, it was frozen. Requests to change the centre later are not granted, so apply early.
Step 7: Pay the Fee or Claim Exemption
Pay Rs 200 online, unless you are exempt. The fee rules are explained below.
Step 8: Review, Submit and Save
Check every field one last time, accept the declaration and submit. Save the final application as a PDF, note your Application Number along with your URN, and take a printout for your records.
CDS 1 2027 Application Fee
In both CDS 2026 cycles, the fee was Rs 200. The same amount is expected for CDS 1 2027, but it will be confirmed only in the 2027 notice.
| Category | Fee (CDS I 2026, official) | CDS 1 2027 |
|---|---|---|
| General, OBC and EWS male candidates | Rs 200 | Expected: Rs 200 |
| All female candidates | Nil (exempted) | Expected: Nil |
| SC and ST candidates | Nil (exempted) | Expected: Nil |
A few fee rules from the CDS (I) 2026 notice are worth knowing before you pay:
- The notice specifically states that no fee exemption is available to OBC candidates; they must pay the full fee.
- Payment is accepted only through Visa, MasterCard or RuPay credit or debit cards, UPI, or internet banking of any bank. Applications without the prescribed fee are summarily rejected, unless a fee exemption has been claimed.
- Fee once paid is not refunded and cannot be held in reserve for any other examination.
- If the bank does not send your payment details to UPSC, your application is first treated as a ‘fictitious payment’ case and rejected. UPSC publishes a list of such cases within two weeks of the closing date, and you then have 10 days to submit proof of payment so that a genuine application can be revived.
Documents and Details to Keep Ready
UPSC does not ask you to submit certificates with the online form, but you must enter details correctly and upload a few files. Keep the following ready before 2 December 2026:
| Item | Why It Is Needed |
|---|---|
| Class 10 certificate | Name and date of birth must match it exactly |
| One Photo ID (Aadhaar, Voter ID, PAN, Passport, Driving Licence or other Government photo ID) | Entered in the URN profile; the same ID is to be carried to the exam and the SSB |
| Recent photograph and signature (scanned) | Uploaded in the Common Application Form |
| Category certificate (if applicable) | To claim SC or ST status and fee exemption; produced later when asked |
| NCC ‘C’ certificate details (if applicable) | For the NCC reserved vacancies in IMA, INA and AFA |
The notice strongly advises using Aadhaar as the Photo ID for easy verification.
Academy Preferences: Rules to Follow While Filling the Form
The preference section is where many candidates make permanent mistakes. As per the CDS (I) 2026 notice:
- A male candidate who wants only a Short Service Commission should choose OTA as his only preference.
- A male candidate applying for both permanent commission (IMA, INA, AFA) and OTA must place OTA last. If he does not, OTA is treated as his last choice anyway.
- Women candidates are considered only for the SSC course at OTA and should choose OTA as their only preference.
- Candidates who want the Air Force Academy must choose AFA as their first preference. AFA given as a second or later choice is treated as invalid.
- You are considered only for the academies you choose, and you must give at least one preference.
- No addition or change in preferences is accepted after the application is submitted.
No Withdrawal and No Correction: Why You Must Check Twice
Two rules in the recent CDS notices make accuracy more important than speed:
- No withdrawal: The CDS (I) 2026 notice states that candidates are not allowed to withdraw their application after submitting it.
- No correction window: Earlier CDS cycles offered a seven-day window to correct the form after the last date. For CDS (I) 2026, UPSC decided not to extend this facility, citing the multiple reconfirmations already built into the portal. No correction is allowed in the URN, the Common Application Form or the examination module after submission and the closing of the window. The CDS (II) 2026 notice followed the same approach.
UPSC does offer a one-time facility to modify the URN profile, but the notice makes it clear that such a change applies only to applications submitted after the profile is updated and locked again. It does not change an application you have already submitted.
After You Apply
After the window closes, the next step is the e-admit card, issued on the UPSC website on the last working day of the week before the exam. It is not sent by post or email, and you need your Application ID and date of birth to download it. For the complete timeline, including the expected admit card, result and SSB months, see our article on the CDS 1 exam date 2027.
Common Mistakes to Avoid
- Waiting for the last day. Portal traffic peaks near the deadline, and an extension is never guaranteed.
- Entering a name or date of birth that differs from the Class 10 certificate.
- Uploading a blurred photograph or failing the live photo capture because of poor lighting.
- Placing OTA above IMA, INA or AFA, or listing AFA as a second choice.
- Applying without checking the academy-wise CDS age limit and education rules.
For technical problems, UPSC ran a helpline (011-24041001) from 10:00 AM to 5:30 PM on working days during the CDS (I) 2026 window; a similar facility is expected for 2027.
Frequently Asked Questions
1. When will CDS 1 2027 apply online start?
As per the UPSC calendar for 2027, the online application is scheduled to open with the notification on 2 December 2026 and close on 22 December 2026. As on 12 November 2026, the application has not started.
2. What is the application fee for CDS 1 2027?
The fee is expected to be Rs 200, as in the CDS (I) 2026 and CDS (II) 2026 cycles. Female, SC and ST candidates were exempted, while OBC candidates had to pay the full fee. The 2027 fee will be confirmed in the notice.
3. Can I correct my CDS 1 2027 application after submitting it?
Based on the 2026 notices, no. UPSC did not provide a correction window after the closing date in either 2026 cycle, and applications cannot be withdrawn after submission. Check every detail before you submit.
4. Can final-year students apply for CDS 1 2027?
Yes. Final-year degree students can apply but must submit proof of passing by the dates fixed in the notice, and a bonafide certificate from their college or university at the SSB.
5. Can I complete registration before the notification?
Yes. Account creation, Universal Registration and the Common Application Form are common to all UPSC exams and can be completed at any time. Only the CDS examination module has to wait for the window to open.
Conclusion
The CDS 1 2027 application window is scheduled to run from 2 December to 22 December 2026, and the registration link will appear only on upsconline.nic.in once the official notice is out. If the 2026 rules continue, you will pay Rs 200 (nil for female, SC and ST candidates), choose your academies and centre in the examination module, and have no chance to withdraw or correct the form afterwards.
Complete your account, URN and Common Application Form now, decide your academy preferences carefully, and apply in the first few days of the window. This page will be updated with the official CDS (I) 2027 details as soon as UPSC releases the notice.
