JEE Main 2027 Application Form Correction Window

Once the registration deadline passes, NTA does not leave the application form permanently frozen. It opens a short, separate window in which candidates log in with their application number and password and fix selected details. The window is not a second chance to register, and it is not open-ended: in the 2025-26 cycle it lasted just two days per session.

As of mid-October 2026, NTA has not opened JEE Main 2027 Session 1 registration or released the Information Bulletin. Everything below describes how the facility worked for JEE Main 2026 and should be read as the likely pattern, not an official 2027 rule. Two sources are official: the JEE (Main) 2026 Information Bulletin and NTA's 2026 FAQs, which establish that a correction window exists, is notified later, covers only certain fields and is one-time. The exact dates and field lists are from NTA's public notices as reported by news sites; we could not open the notice PDFs themselves. The final word will be the notice on jeemain.nta.nic.in. If you have not yet got your login details sorted, read our guide on login, password and application number recovery first, because you cannot use the window without them.

The editable list differed between sessions and between candidate types. The two columns below are assembled from Careers360 and similar coverage of NTA's two correction notices; Brilliantpala and Class24 give broadly matching Session 1 lists, while one site (Sarvgyan) gave a conflicting list that we did not use. "Existing" means a candidate who registered in Session 1 and applied again for Session 2; "new" means Session 2 only.

Contact details, addresses and the photograph being locked is the part that catches families out. The mobile number and e-mail are where NTA sends OTPs and updates; the address and photograph tie into identity checks. In the 2026 form, identity was verified through Aadhaar e-KYC (an OTP to the Aadhaar-linked mobile) or DigiLocker, with a scanned identity proof for candidates who used neither, and the correction notices reported identity details as open only to candidates who had not verified through Aadhaar. Our page on the APAAR ID and Aadhaar requirement explains that verification step in more detail.

Practical consequence: enter your own working mobile number and an e-mail account you will actually read, not a coaching centre or cyber cafe address. Upload a clear photograph at the first attempt using the rules on the photo and signature page, because the 2026 bulletin says correction of uploaded photograph, signature and certificates will not be given later, and the photograph was listed as locked in the correction notices.

What NTA's notices said, as reported, is that any additional fee arising from a change has to be paid by credit card, debit card, net banking or UPI. The notices as reported do not publish a separate correction charge. What the bulletin does give is the base fee table, which makes the likely triggers clear: for one paper in India the 2026 fees were Rs 1,000 (General male), Rs 900 (General-EWS/OBC-NCL male), Rs 800 (female General, EWS or OBC-NCL) and Rs 500 (SC/ST/PwD/PwBD and third gender), and a second paper or a centre outside India raises the amount. So a category change from a concessional slot to General, adding a paper, or moving to a centre abroad would plausibly require a top-up, though that is our reading of the table, not an NTA statement. Processing charges and GST are extra, and the bulletin says the confirmation page is generated only after successful payment, so an unpaid correction may not take effect. See the registration fee structure page for how the base fee is built.

On the one-time rule: NTA's 2026 FAQ 29 says "A one-time correction facility for selected fields will be provided", and the correction notice, as quoted by Careers360, stated that thereafter no correction in particulars whatsoever would be entertained under any circumstances. The same FAQ says NTA is not responsible for mistakes made by candidates, and FAQ 30 says a submitted form cannot be cancelled or withdrawn. In plain terms, submit one complete round of corrections, not several small ones, and do not plan on revisiting the form later.

Category. If you registered under the wrong category, fix it in the window, but check the certificate rules first. OBC-NCL and EWS claims rely on a valid certificate, covered on our category certificate page. A switch to General may increase the fee.

Paper choice. Adding B.Arch or B.Planning is the usual case. It can add to the fee and changes the exam schedule you will see on the admit card.

State code of eligibility. This affects your home-state quota status later in counselling, so confirm it against your Class 12 board school location before the window, using the official rule when the bulletin is out.

Marks and board details. Correct spelling and roll number errors, since these are cross-checked later. For everything that goes wrong in registration, our list of registration mistakes to avoid is a good second read.

Use this table to triage an error found after you submit. It combines what the 2026 bulletin says with what the reported correction notices allowed. The "route" column is the route that applied in 2026; check the 2027 notice for changes.

The 2026 bulletin treated the two sessions as separate applications that share one application number: you register once, apply for Session 2 later with the same number and pay again, and the FAQs say candidates apply separately for each session. In practice the reported notices ran a separate correction window for each session, with a different editable list for existing and new candidates. The FAQs also say that if you appear in both sessions, the better NTA score is used for the merit list, so an error that affects your score eligibility, such as a wrong paper, matters in both. Compare the dates on our Session 1 versus Session 2 registration page and see JEE Main 2027 exam dates, where the tentative calendar places Session 1 in late January 2027.

If you are adding Paper 2A or 2B, read the Paper 2 registration page first, because the exam duration differs (3 hours 30 minutes for B.Arch and B.Planning together, per the 2026 bulletin). For city changes, see the exam city choice guide, and for identity details the Information Bulletin page.