GATE Answer Keys: Year Wise PDF Download

Download GATE Answer Keys PDF for the last 5 years, including GATE 2025. Check official answer keys, question papers, and use them to estimate scores, analyse trends, and boost preparation for GATE 2026. Access subject-wise GATE answer keys 2021 to 2025 with detailed steps to download.
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GATE Answer Keys: Candidates who have appeared in GATE Exam, GATE Answer Keys play an important role in estimating Expected Score and as well GATE Rank in the following Exam. GATE Answer Keys not only help to estimate marks but also help in transparency in Exam process. GATE Exam is conducted in February by IITs & IISc. GATE Final Answer key 2025  was released on March 18, 2025. 

In this article, we will provide detailed information on GATE Answer Key, steps to download, and access to last 5 years, including GATE Answer Key 2025, GATE Answer Key 2024, GATE Answer Key 2023, GATE Answer Key 2022, and GATE Answer Key 2021 in PDFs. 

Also read GATE Exam 2026  

GATE Answer Keys Overview 

GATE Answer Keys were released by the officials. Candidates can match their selected answers to the official answer key and can raise objections to some questions. The objection window was opened for a given time period. 

GATE Answer Keys Overview is provided in table below

GATE Answer Key Overview 
Exam NameGATE Exam
Organizing InstituteIITs & IISc
Purpose of the GATE ExamProviding Admission to M.E./ M.Tech/ PhD Courses and PSU Recruitments through GATE
StatusReleased
GATE Exam Date February 
GATE 2025 Answer Key Release DateFebruary 
Objection Raise datesFeb to March
GATE 2025 Final Answer KeyMarch
GATE Official Website Decided by Organising Institutes 

Also read GATE Exam 2026  Notification 

GATE Answer Key last 5 years 

GATE Answer Key Last 5 Years is provided here in this article. Previous year answer keys help candidates to get exact answer of number of questions that were asked in previous Exam. This helps candidates in solving NATs and MQs, especially those that are asked in high percentages and carry high weightage. Candidates can download last 5 years’ GATE Answers keys in PDFs, provided the link below. This will help boost Preparation as well as ranking in the upcoming GATE Exam 2026

   

GATE Answer Key 2025 PDF

GATE Answer Key 2025 PDF along with the  question Paper is provided in table below  

Question PaperFinal Answer KeyQuestion PaperFinal Answer Key
Aerospace Engineering (AE)AE Instrumentation Engineering (IN)IN 
Agricultural Engineering (AG)AG Mathematics (MA)MA 
Architecture and Planning (AR)AR Mechanical Engineering (ME)ME 
Biomedical Engineering (BM)BM Mining Engineering (MN)MN 
Biotechnology (BT)BT Metallurgical Engineering (MT)MT 
Civil Engineering (CE-1) (Forenoon)CE-1 Naval Architecture and Marine Engineering (NM)NM 
Civil Engineering (CE-2) (Afternoon)CE-2 Petroleum Engineering (PE)PE 
Chemical Engineering (CH)CH Physics (PH)PH 
Computer Science and Information Technology (CS-1) (Forenoon)CS-1 Production and Industrial Engineering (PI)PI 
Computer Science and Information Technology (CS-2) (Afternoon)CS-2 Statistics (ST)ST 
Chemistry (CY)CY Textile Engineering and Fibre Science (TF)TF 
Data Science and Artificial Intelligence (DA)DA Engineering Sciences (XE)XE 
Electronics and Communication Engineering (EC)EC Humanities & Social Sciences – Economics (XH-C1)XH-C1 Key
Electrical Engineering (EE)EE Humanities & Social Sciences – English (XH-C2)XH-C2 
Environmental Science & Engineering (ES)ES Humanities & Social Sciences – Linguistics (XH-C3)XH-C3 
Ecology and Evolution (EY)EY Humanities & Social Sciences – Philosophy (XH-C4)XH-C4 
Geomatics Engineering (GE)GE Humanities & Social Sciences – Psychology (XH-C5)XH-C5 
Geology and Geophysics – Geology (GG-1)GG-1 Humanities & Social Sciences – Sociology (XH-C6)XH-C6 
Geology and Geophysics – Geophysics (GG-2)GG-2 Life Sciences (XL)XL 

Also read GATE Exam 2026 Eligibility 

GATE Answer Key 2024 PDF

GATE Answer Key 2024 PDF, along with Question Paper, is provided in the table below 

GATE PaperAnswer KeyGATE PaperAnswer Key
Aerospace EngineeringAEInstrumentation EngineeringIN
Agricultural EngineeringAGMathematicsMA
Architecture and PlanningARMechanical EngineeringME
Biomedical EngineeringBMMining EngineeringMN
BiotechnologyBTMetallurgical EngineeringMT
Civil EngineeringCE-1Naval Architecture and Marine EngineeringNM
Civil EngineeringCE-2Petroleum EngineeringPE
Chemical EngineeringCHPhysicsPH
Computer Science and Information TechnologyCS-1Production and Industrial EngineeringPI
Computer Science and Information TechnologyCS-2StatisticsST
ChemistryCYTextile Engineering and Fibre ScienceTF
Data Science and Artificial IntelligenceDAEngineering SciencesXE
Electronics and Communication EngineeringECHumanities & Social Sciences – EconomicsXH-C1
Electrical EngineeringEEHumanities & Social Sciences – EnglishXH-C2
Environmental Science & EngineeringESHumanities & Social Sciences – LinguisticsXH-C3
Ecology and EvolutionEYHumanities & Social Sciences – PhilosophyXH-C4
Geomatics EngineeringGEHumanities & Social Sciences – PsychologyXH-C5
Geology and Geophysics – GeologyGG-1Humanities & Social Sciences – SociologyXH-C6
Geology and Geophysics – GeophysicsGG-2Life SciencesXL

 GATE Answer Key 2023 PDF

GATE Answer Key 2023 PDF, along with Question Paper, is provided in table below 

GATE PaperAnswer KeyGATE PaperAnswer Key
Aerospace EngineeringAEGeology and Geophysics – GeologyGG-1
Agricultural EngineeringAGGeology and Geophysics – GeophysicsGG-2
Architecture and PlanningARInstrumentation EngineeringIN
Biomedical EngineeringBMMathematicsMA
BiotechnologyBTMechanical EngineeringME
Civil EngineeringCE-1Mining EngineeringMN
Civil EngineeringCE-2Metallurgical EngineeringMT
Chemical EngineeringCHNaval Architecture & Marine EngineeringNM
Computer Science & Information TechnologyCSPetroleum EngineeringPE
ChemistryCYPhysicsPH
Electronics & Communication EngineeringECProduction & Industrial EngineeringPI
Electrical EngineeringEEStatisticsST
Environmental Science & EngineeringESTextile Engineering & Fibre ScienceTF
Ecology and EvolutionEYEngineering SciencesXE
Geomatics EngineeringGEHumanities & Social SciencesXH
Life SciencesXL

Also read GATE 2025 Cut Off 

GATE Answer Key 2022 PDF

GATE Answer Key 2022 PDF, along with Question paper, is provided in table below 

GATE PaperAnswer KeyGATE PaperAnswer Key
Aerospace EngineeringAEInstrumentation EngineeringIN
Agricultural EngineeringAGMathematicsMA
Architecture and PlanningARMechanical EngineeringME
Biomedical EngineeringBMMining EngineeringMN
BiotechnologyBTMetallurgical EngineeringMT
Civil EngineeringCENaval Architecture & Marine EngineeringNM
Chemical EngineeringCHPetroleum EngineeringPE
Computer Science & Information TechnologyCSPhysicsPH
ChemistryCYProduction & Industrial EngineeringPI
Electronics & Communication EngineeringECStatisticsST
Electrical EngineeringEETextile Engineering & Fibre ScienceTF
Environmental Science & EngineeringESEngineering SciencesXE
Ecology and EvolutionEYHumanities & Social SciencesXH
Geomatics EngineeringGELife SciencesXL
Geology & GeophysicsGG

GATE Answer Key 2021 PDF

GATE Answer Key 2021 PDF, along with Question Paper subject wise is provided in table below 

GATE PaperAnswer key GATE PaperAnswer Key 
Aerospace EngineeringAEInstrumentation EngineeringIN
Agricultural EngineeringAGMathematicsMA
Architecture and PlanningARMechanical EngineeringME
Biomedical EngineeringBMMining EngineeringMN
BiotechnologyBTMetallurgical EngineeringMT
Civil EngineeringCEPetroleum EngineeringPE
Chemical EngineeringCHPhysicsPH
Computer Science & Information TechnologyCSProduction & Industrial EngineeringPI
ChemistryCYStatisticsST
Electronics & Communication EngineeringECTextile Engineering & Fibre ScienceTF
Electrical EngineeringEEEngineering SciencesXE
Environmental Science & EngineeringESHumanities & Social SciencesXH
Ecology and EvolutionEYLife SciencesXL
Geology & GeophysicsGG

Also Read GATE Exam Preparation 

GATE Answer Key 2020 PDF 

GATE Answer Key 2020 PDF, along with Question paper subject wise provided in the table below 

GATE PaperAnswer Key GATE PaperAnswer Key
Aerospace EngineeringAEInstrumentation EngineeringIN
Agricultural EngineeringAGMathematicsMA
Architecture and PlanningARMechanical EngineeringME
Biomedical EngineeringBMMining EngineeringMN
BiotechnologyBTMetallurgical EngineeringMT
Civil EngineeringCEPetroleum EngineeringPE
Chemical EngineeringCHPhysicsPH
Computer Science & Information TechnologyCSProduction & Industrial EngineeringPI
ChemistryCYStatisticsST
Electronics & Communication EngineeringECTextile Engineering & Fibre ScienceTF
Electrical EngineeringEEEngineering SciencesXE
Ecology and EvolutionEY
Geology & GeophysicsGGLife SciencesXL

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GATE Answer Keys FAQs

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To download GATE Answer Key 2025 PDF, read the above article for respective subjects.

Yes, candidates can raise objections to GATE Answer Key 2025 when the Objection window is opened.

Candidates can download last 5 years GATE Answer keys including GATE Answer key 2025 PDf here in this article.

Last 5 years GATE Answer key will help in understanding trends, difficulty level, and provides valuable insights for future preparation.