The answer key challenge in NEET is the official process where candidates can object to one or more answers in the provisional answer key if they believe the answer given by NTA is incorrect. For the NEET-UG 2026 re-exam, this challenge window was open until June 28, with a fee of Rs 200 per question and supporting proof required.

What it means

  • NTA releases a provisional answer key first, not the final one.
  • Candidates compare their responses with the key and raise objections to any doubtful question or answer.
  • The objections are reviewed by subject experts before the final answer key is issued.

How it works

  1. Log in on the official NEET portal.
  1. Select the question you want to challenge.
  1. Upload supporting documents, usually from NCERT or other standard textbooks.
  1. Pay the processing fee of Rs 200 per question.
  1. Submit the challenge and keep the acknowledgement safely.

Why it matters

If a challenge is accepted, the answer key may be revised, which can affect marks, rank, and the final result. The fee is refundable for objections accepted by experts.

Simple example

If a biology question in the provisional key shows one option, but a candidate finds a different correct answer in an approved textbook, they can challenge that question with proof. That is what “answer key challenge” means in NEET.

Current context

For the June 2026 re-exam cycle, NTA had already released the provisional answer key and opened the objection window, and the result was expected after objections were processed and the final key was prepared.

TL;DR: NEET answer key challenge is the formal objection process for disputing incorrect provisional answers before the final result is prepared.