The Master Question Papers and Answer Keys of various test papers of GATE 2026 are given below. The keys were open to challenges by candidates during February 25 to February 28, 2026.

The Answer Key matches the order of questions in the Master Question Paper. The order in which the questions and options appeared on the candidate console in the examination may be different from the order in which they appear in the Master Question Paper. Candidates must refer to the Master Question Paper and the associated Answer Key for checking the correctness of their responses.

For Multiple Choice Questions (MCQs), only one of the given options is the correct answer. There is a negative marking for wrong answers to MCQs: one-third negative marks for one-mark questions, and two-thirds negative marks for two-mark questions.

For Multiple Select Questions (MSQs), all correct options must be chosen, and no wrong answer must be chosen by the candidate to get full marks. There is no partial marking for MSQs. There is no negative marking for MSQs.

For Numerical Answer Type (NAT) questions, the candidate’s numerical response must be within the range given in the Answer Key to get full marks. There is no negative marking for NATs.

In the Answer Key files, MTA stands for Marks To All, which means that, for those questions, the marks allotted to that question will be given to all the candidates appearing for the test paper.