GATE IN Answer Key 2021 – Instrumentation Engineering Answer Key [Released]


The GATE IN Exam was conducted by IIT Bombay on 6th February 2021. The official answer key will be released by the conducting authority. The candidates can download the official answer key from the official website of IIT Bombay.

This article will provide you with complete information regarding the GATE IN Answer Key 2021.

GATE IN Answer Key 2021

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GATE 2022 Exam Dates

GATE 2022 Exam Dates are tabulated below. Take a look:

Online Application Process Opens ( )ThursdaySeptember 2, 2021
Closing Date of REGULAR online registration/ application processThursdaySeptember 30, 2021
Closing Date of EXTENDED online registration/ application processThursdayOctober 7, 2021
Last date for Rectification of Applications found Defective in ScrutinyFridayNovember 12,  2021
Last Date for change of Category, Paper, and Examination City (an additional fee will be applicable)FridayNovember 12, 2021
Admit Card AvailabilityMondayJanuary 3, 2022
GATE 2022 Examination
Forenoon: 9:00 AM to 12:00 Noon (Tentative)
Afternoon: 2:30 PM to 5:30 PM (Tentative)
February 5, 2022
February 6, 2022
February 12,  2022
February 13,  2022
Announcement of the ResultsThursdayMarch 17, 2022


GATE 2021 IN Answer Key

GATE IN Exam Analysis

GATE IN Analysis

Also Check: GATE IN Syllabus

How to Calculate Gate Score using the Answer Keys

  • MCQs carrying 1 mark each, 1/3 marks would be deducted as a penalty for marking the wrong answer.
  • For questions carrying 2 marks, 2/3 marks would be deducted for marking an incorrect answer
  • Count the Marks gained in the correct answer deduct the marks lost in incorrect answers due to negative marking.
  • GATE Marks = Marks obtained for MCQs + Marks obtained for NAT questions
  • NAT Marks = Total marks (1 mark for each question) + Total marks (2 marks for each question)
  • MCQ Marks: Total marks (1 mark) + Total marks (2 marks)
  • Total marks (1 marks) = 1 x (number of correct answers) – 1/3 x (number of wrong answers)
  • Total marks (2 marks) = 2 x (number of correct answers )– 2/3 x( number of wrong answers)

GATE Cutoff 2021

GATE Cut off is the minimum mark to be eligible for admission to IITs and IISc. This is a factor in deciding whether or not has the candidates qualified for the exam. GATE cut-off marks vary stream-wise and category-wise.The GATE cut off for 2021 is given below:

S. No.Paper NamePaper CodeQualifying Marks
1Life SciencesXL31.728.521.1
2Civil EngineeringCE32.929.621.9
3Electrical EngineeringEE33.430.022.2
4Computer Science and Information TechnologyCS28.525.619.0
5Mechanical EngineeringME34.030.622.6
6Petroleum EngineeringPE39.835.826.5
7Electronics and Communication EngineeringEC28.825.919.2
8Chemical EngineeringCH35.732.123.8
11Engineering Sciences MinorXE26.023.417.3
12Textile Engineering and Fibre ScienceTF37.133.324.7
13Aerospace EngineeringAE27.224.418.1
14Agricultural EngineeringAG26.323.617.5
15Architecture and PlanningAR34.831.323.2
16Ecology and EvolutionEY42.237.928.1
18Instrumentation EngineeringIN34.631.123.0
20Mining EngineeringMN32.729.421.8
21Metallurgical EngineeringMT49.244.232.8
23Production and Industrial EngineeringPI36.632.924.4
25Biomedical EngineeringBM25.022.516.6


It is extremely essential to analyze the previous years’ question paper to gain a better understanding of the exam. You certainly have a better idea about the nature of the exam. This article helps you to provide question papers along with their respective answer key of the GATE IN exam 2021.

Do not overlook this part during your preparation.

Good luck!


Education is the passport to the future, for tomorrow belongs to those who prepare for it today.

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