ISRO ISTRAC 2026: response-sheet and answer-key objection window

Which examination this concerns

The update concerns the computer-based test under ISTRAC:02:2026, held on 25 September 2026. It is an examination update, not a fresh application invitation.

Published access window

The official notice says candidates can access their response sheets and raise objections to the question paper or answer key from 1 October 2026 at 6 pm until 4 October 2026 at 6 pm.

Where to check

Open the ISTRAC recruitment page and follow its response-sheet link. Confirm the advertisement number before signing in. Read the portal's objection instructions and preserve your submission receipt.

The earlier recruitment application deadline and admit-card links on the same page relate to previous stages; they should not be mistaken for a new recruitment window.

Candidate review guide

Confirm the examination before signing in

Match the advertisement reference and test date in the notice with your own acknowledgement. The same recruitment page can contain an old application link, a later admit-card update and a response-sheet announcement. Use the link associated with the response-sheet stage described above. Enter account credentials only on the official destination reached from that page.

Compare the response and key carefully

Keep the question identifier, your recorded response and the displayed key together when reviewing an item. A remembered question number may not be enough if a portal uses different question orders or identifiers. Read the complete wording before deciding whether there is a discrepancy.

Distinguish a disagreement with the proposed answer from an issue in the recorded response or displayed question. The authority's instructions determine which issues can be submitted through its objection process. This guide does not promise that every type of complaint is accepted in that window.

Prepare a clear objection, where permitted

Follow the official form's evidence requirements. State the precise issue and the source supporting your position, rather than submitting an unrelated screenshot or an unsupported opinion. Check any fee, file-format and per-question instructions in the portal; those details are not established by this article.

Review the selected question and attachments before sending the form. Keep any acknowledgement or reference the portal provides. An attempted upload or unfinished form is not the same as a confirmed submission. Allow time for a retry while the announced window remains open.

What happens after the window

Use the official recruitment page for any revised or final key and later results. An objection submission does not guarantee a changed answer or a particular result. Avoid presenting your own calculation from a provisional key as an official final score. This page is an examination-stage guide, not an invitation to submit a new job application.