How to Challenge GATE 2026 Answer Key: Objection Process Explained Here

Following the successful conduct of the exam by IIT Guwahati, the GATE 2026 Provisional Answer Key and Response Sheets were officially released on February 22, 2026. While candidates are currently busy calculating their estimated scores, the most critical phase is approaching: the Answer Key Challenge Window.

If you identify a discrepancy in the provisional key, this window is your only opportunity to contest the official answers. Here is the verified process and updated information to help you navigate this high-stakes period.

Important Dates for GATE 2026

The challenge window typically remains open for a short duration (3-4 days). While the exact dates for the 2026 window are pending a final notification from IIT Guwahati, they are expected shortly.

Here are the important dates for the GATE 2026 answer key and objection process:

• GATE 2026 Exam Dates: February 7, 8, 14 & 15, 2026

• Provisional Answer Key Release: February 22, 2026

• Answer Key Objection Window: February to early March 2026

• Final Answer Key Release: Before the result announcement

• GATE 2026 Result Date: March 19, 2026

1. Log In: Visit gate2026.iitg.ac.in and log in using your Enrollment ID/Email and Password.

2. Access Challenges: Click on the "Contest Answer Key" or "Raise Objection" link on your dashboard.

3. Identify the Question: You must provide the Question ID as found in the Master Question Paper.

• Note: Do not use the question numbers from your individual response sheet, as question sequences are randomized for every candidate.

4. Justification & Evidence: Provide a clear, technical explanation for your objection.

• Crucial: You must upload a PDF document containing proof from standard textbooks or peer-reviewed research papers. Handwritten notes or coaching institute materials are not accepted as valid evidence.

5. Payment: Pay the non-refundable processing fee of ₹500 per question.

Key Rules & Facts You Must Know

1. Non-Refundable Processing Fee

Unlike some previous years, the ₹500 per question fee for GATE 2026 is a non-refundable processing charge. It will not be returned, regardless of whether your challenge is accepted or rejected by the subject experts.

2. MSQ and NAT Marking

Many candidates attempt to challenge Multiple Select Questions (MSQs) based on partial correctness. Be aware that no partial marking exists for MSQs; you must select all correct options and no incorrect ones to get marks. Challenges regarding partial marks will be automatically dismissed.

3. Marks to All (MTA)

If the subject expert committee finds that a question is technically flawed (e.g., no correct answer among the options), they may declare it as Marks to All (MTA). In such cases, every candidate who appeared for that specific session will receive marks for that question, ensuring fairness across the board.

4. The Finality of the Key

Once all challenges are reviewed, IIT Guwahati will release the Final Answer Key. The results declared on March 19 will be calculated exclusively based on this final version. No further objections or correspondence will be entertained after the final key is published.

Tips for a Successful Challenge

• Collaborate: Coordinate with peers on student forums. Since the fee is non-refundable, it is often better for a group to ensure that at least one person submits a "perfect" challenge with the strongest possible evidence.

• Master Paper Reference: Double-check that you are using the correct Question ID from the official Master Question Paper. A mistake here will render your challenge void.

• Stay Updated: Keep a close watch on the official notifications page for the exact start and end times of the challenge window.

What Happens After Challenging the GATE 2026 Provisional Key?