GATE ES Topic Weightage: Historical PYQ Coverage

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Historical topic coverage

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A question can carry multiple topic tags. Counts and marks are independent per topic; adding rows can count the same question more than once. Use the data to explore past papers alongside the syllabus.

Analysis range

6 available years · 6 papers

ALL YEARS · COMPLETE ARCHIVE

Compare topics across all years

2021–2026 · 6 archived years · 6 papers. Compare total tagged coverage, recurrence and the observed range across years. This analysis uses the selected range and stays independent of the paper year selector.

Average = total matched tagged marks ÷ all 6 papers in this range. Years without a matching tag add no matched marks to this calculation; this does not establish zero actual exam coverage. Read the average alongside the years tagged.

The observed range uses only years with matched data, dividing each year’s marks by its paper count. Topic tags overlap, so totals cannot be added into a whole-paper marks split.

Tagged marks: 39
Tagged questions: 22
Avg marks / archive paper: 6.5
Observed marks / paper: 3–11

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 37
Tagged questions: 23
Avg marks / archive paper: 6.17
Observed marks / paper: 4–8

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 34
Tagged questions: 22
Avg marks / archive paper: 5.67
Observed marks / paper: 2–10

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 33
Tagged questions: 21
Avg marks / archive paper: 5.5
Observed marks / paper: 3–7

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 28
Tagged questions: 20
Avg marks / archive paper: 4.67
Observed marks / paper: 3–6

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 25
Tagged questions: 13
Avg marks / archive paper: 4.17
Observed marks / paper: 2–6

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 23
Tagged questions: 13
Avg marks / archive paper: 3.83
Observed marks / paper: 2–6

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 21
Tagged questions: 14
Avg marks / archive paper: 3.5
Observed marks / paper: 2–5

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 20
Tagged questions: 12
Avg marks / archive paper: 3.33
Observed marks / paper: 1–8

Matched years: 2021, 2022, 2023, 2024, 2026

Tagged marks: 20
Tagged questions: 14
Avg marks / archive paper: 3.33
Observed marks / paper: 2–5

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 20
Tagged questions: 14
Avg marks / archive paper: 3.33
Observed marks / paper: 2–6

Matched years: 2021, 2022, 2023, 2024, 2026

Tagged marks: 18
Tagged questions: 12
Avg marks / archive paper: 3
Observed marks / paper: 2–4

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 18
Tagged questions: 11
Avg marks / archive paper: 3
Observed marks / paper: 2–5

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 18
Tagged questions: 12
Avg marks / archive paper: 3
Observed marks / paper: 3–5

Matched years: 2022, 2023, 2024, 2025, 2026

Tagged marks: 17
Tagged questions: 10
Avg marks / archive paper: 2.83
Observed marks / paper: 1–4

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 17
Tagged questions: 13
Avg marks / archive paper: 2.83
Observed marks / paper: 1–6

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 17
Tagged questions: 11
Avg marks / archive paper: 2.83
Observed marks / paper: 2–5

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 17
Tagged questions: 12
Avg marks / archive paper: 2.83
Observed marks / paper: 3–4

Matched years: 2021, 2022, 2023, 2024, 2025

Tagged marks: 16
Tagged questions: 10
Avg marks / archive paper: 2.67
Observed marks / paper: 1–6

Matched years: 2021, 2023, 2024, 2025, 2026

Tagged marks: 13
Tagged questions: 11
Avg marks / archive paper: 2.17
Observed marks / paper: 2–4

Matched years: 2021, 2023, 2024, 2025, 2026

Tagged marks: 11
Tagged questions: 9
Avg marks / archive paper: 1.83
Observed marks / paper: 1–4

Matched years: 2021, 2022, 2023, 2025, 2026

Tagged marks: 11
Tagged questions: 6
Avg marks / archive paper: 1.83
Observed marks / paper: 1–4

Matched years: 2021, 2022, 2024, 2025, 2026

Tagged marks: 9
Tagged questions: 6
Avg marks / archive paper: 1.5
Observed marks / paper: 2–3

Matched years: 2021, 2022, 2023, 2025

Tagged marks: 9
Tagged questions: 5
Avg marks / archive paper: 1.5
Observed marks / paper: 1–2

Matched years: 2021, 2022, 2023, 2025, 2026

Tagged marks: 9
Tagged questions: 7
Avg marks / archive paper: 1.5
Observed marks / paper: 1–3

Matched years: 2021, 2022, 2023, 2024, 2025, 2026

Tagged marks: 9
Tagged questions: 5
Avg marks / archive paper: 1.5
Observed marks / paper: 1–2

Matched years: 2021, 2022, 2024, 2025, 2026

Tagged marks: 8
Tagged questions: 5
Avg marks / archive paper: 1.33
Observed marks / paper: 1–2

Matched years: 2021, 2022, 2023, 2024, 2026

Tagged marks: 8
Tagged questions: 6
Avg marks / archive paper: 1.33
Observed marks / paper: 1–2

Matched years: 2021, 2022, 2023, 2024, 2026

Tagged marks: 7
Tagged questions: 6
Avg marks / archive paper: 1.17
Observed marks / paper: 1–3

Matched years: 2021, 2022, 2024, 2025, 2026

Tagged marks: 7
Tagged questions: 6
Avg marks / archive paper: 1.17
Observed marks / paper: 1–3

Matched years: 2022, 2023, 2024, 2025

Tagged marks: 7
Tagged questions: 4
Avg marks / archive paper: 1.17
Observed marks / paper: 1–2

Matched years: 2022, 2023, 2024, 2026

Tagged marks: 6
Tagged questions: 4
Avg marks / archive paper: 1
Observed marks / paper: 2–2

Matched years: 2022, 2024, 2026

Tagged marks: 6
Tagged questions: 4
Avg marks / archive paper: 1
Observed marks / paper: 1–3

Matched years: 2022, 2023, 2026

Tagged marks: 4
Tagged questions: 2
Avg marks / archive paper: 0.67
Observed marks / paper: 4–4

Matched years: 2026

Tagged marks: 4
Tagged questions: 3
Avg marks / archive paper: 0.67
Observed marks / paper: 4–4

Matched years: 2026

Tagged marks: 4
Tagged questions: 2
Avg marks / archive paper: 0.67
Observed marks / paper: 2–2

Matched years: 2021, 2022

Tagged marks: 3
Tagged questions: 2
Avg marks / archive paper: 0.5
Observed marks / paper: 3–3

Matched years: 2025

Tagged marks: 3
Tagged questions: 2
Avg marks / archive paper: 0.5
Observed marks / paper: 1–2

Matched years: 2025, 2026

Tagged marks: 3
Tagged questions: 3
Avg marks / archive paper: 0.5
Observed marks / paper: 1–1

Matched years: 2024, 2025, 2026

Tagged marks: 3
Tagged questions: 2
Avg marks / archive paper: 0.5
Observed marks / paper: 3–3

Matched years: 2026

Tagged marks: 2
Tagged questions: 1
Avg marks / archive paper: 0.33
Observed marks / paper: 2–2

Matched years: 2026

Tagged marks: 2
Tagged questions: 2
Avg marks / archive paper: 0.33
Observed marks / paper: 2–2

Matched years: 2026

Tagged marks: 1
Tagged questions: 1
Avg marks / archive paper: 0.17
Observed marks / paper: 1–1

Matched years: 2026

Tagged marks: 1
Tagged questions: 1
Avg marks / archive paper: 0.17
Observed marks / paper: 1–1

Matched years: 2021

Tagged marks: 1
Tagged questions: 1
Avg marks / archive paper: 0.17
Observed marks / paper: 1–1

Matched years: 2026

Topic	Years tagged	Questions	Marks	Avg / paper	Observed range	Practice
Principles of water chemistry	6 / 6	22	39	6.5	3–11	Practise
Municipal solid waste management	6 / 6	23	37	6.17	4–8	Practise
Quantitative Aptitude	6 / 6	22	34	5.67	2–10	Practise
Environmental Hydraulics	6 / 6	21	33	5.5	3–7	Practise
Calculus	6 / 6	20	28	4.67	3–6	Practise
Kinetics and reactor design	6 / 6	13	25	4.17	2–6	Practise
Particulate pollutants	6 / 6	13	23	3.83	2–6	Practise
Spatial Aptitude	6 / 6	14	21	3.5	2–5	Practise
Air pollution	5 / 6	12	20	3.33	1–8	Practise
Probability and Statistics	6 / 6	14	20	3.33	2–5	Practise
Water treatment methods	5 / 6	14	20	3.33	2–6	Practise
Differential Equations	6 / 6	12	18	3	2–4	Practise
Groundwater Resources	6 / 6	11	18	3	2–5	Practise
Surface Water Resources	5 / 6	12	18	3	3–5	Practise
Air quality management	6 / 6	10	17	2.83	1–4	Practise
Global effects of air pollution	6 / 6	13	17	2.83	1–6	Practise
Linear Algebra	6 / 6	11	17	2.83	2–5	Practise
Verbal Aptitude	5 / 6	12	17	2.83	3–4	Practise
Microbial metabolism	5 / 6	10	16	2.67	1–6	Practise
Prokaryotic and eukaryotic microorganisms	5 / 6	11	13	2.17	2–4	Practise
Environmental Law and Policy	5 / 6	9	11	1.83	1–4	Practise
Growth and control of microorganisms	5 / 6	6	11	1.83	1–4	Practise
Analytical Aptitude	4 / 6	6	9	1.5	2–3	Practise
Gaseous Pollutants	5 / 6	5	9	1.5	1–2	Practise
Hazardous waste management	6 / 6	7	9	1.5	1–3	Practise
Noise pollution	5 / 6	5	9	1.5	1–2	Practise
Cell chemistry and cell biology	5 / 6	5	8	1.33	1–2	Practise
Microbiology and health	5 / 6	6	8	1.33	1–2	Practise
Fundamentals of Environmental Chemistry	5 / 6	6	7	1.17	1–3	Practise
Management of biomedical waste, plastic waste and E waste	4 / 6	6	7	1.17	1–3	Practise
Water and wastewater quality parameters	4 / 6	4	7	1.17	1–2	Practise
Atmospheric Chemistry	3 / 6	4	6	1	2–2	Practise
Ecology and various ecosystems	3 / 6	4	6	1	1–3	Practise
Logic	1 / 6	2	4	0.67	4–4	Practise
Point and non point sources of wastewater	1 / 6	3	4	0.67	4–4	Practise
Soil chemistry	2 / 6	2	4	0.67	2–2	Practise
Air and Noise Pollution	1 / 6	2	3	0.5	3–3	Practise
Energy and Environment: Energy Sources	2 / 6	2	3	0.5	1–2	Practise
Sustainable Development	3 / 6	3	3	0.5	1–1	Practise
Transformation of shapes	1 / 6	2	3	0.5	3–3	Practise
Basic vocabulary	1 / 6	1	2	0.33	2–2	Practise
Environmental Management Systems; ISO14000 series; Environmental Auditing	1 / 6	2	2	0.33	2–2	Practise
Basic English grammar	1 / 6	1	1	0.17	1–1	Practise
Integrated solid waste management	1 / 6	1	1	0.17	1–1	Practise
Numerical computation and estimation	1 / 6	1	1	0.17	1–1	Practise

01 · TOPICS ACROSS YEARS

Topics that recur in the selected years

Sorted by the number of archived years with matching tags, then by tagged marks. These are observations from imported papers, not a forecast or an expert priority ranking.

Tagged questions: 22
Tagged marks: 39

Totals across available years; overlaps are retained.

Tagged questions: 23
Tagged marks: 37

Totals across available years; overlaps are retained.

Tagged questions: 22
Tagged marks: 34

Totals across available years; overlaps are retained.

Tagged questions: 21
Tagged marks: 33

Totals across available years; overlaps are retained.

Tagged questions: 20
Tagged marks: 28

Totals across available years; overlaps are retained.

Tagged questions: 13
Tagged marks: 25

Totals across available years; overlaps are retained.

Paper year

1 paper · 65 archived questions · 39 matched topics

02 · YEAR-WISE BREAKDOWN

Explore a year in detail

Choose a year to see its matched topics. Marks are shown from highest to lowest; years with several papers pool those papers.

4 tagged questions · 8 tagged marks

3 tagged questions · 6 tagged marks

3 tagged questions · 5 tagged marks

2 tagged questions · 4 tagged marks

3 tagged questions · 4 tagged marks

2 tagged questions · 4 tagged marks

3 tagged questions · 4 tagged marks

3 tagged questions · 3 tagged marks

2 tagged questions · 3 tagged marks

2 tagged questions · 2 tagged marks

1 tagged questions · 2 tagged marks

2 tagged questions · 2 tagged marks

1 tagged questions · 2 tagged marks

2 tagged questions · 2 tagged marks

1 tagged questions · 1 tagged marks

Topic	Tagged questions	Tagged marks	Practice
Air pollution	4	8	Practise
Principles of water chemistry	3	6	Practise
Water treatment methods	3	6	Practise
Linear Algebra	3	5	Practise
Municipal solid waste management	3	5	Practise
Particulate pollutants	3	5	Practise
Air quality management	2	4	Practise
Calculus	3	4	Practise
Environmental Hydraulics	3	4	Practise
Kinetics and reactor design	2	4	Practise
Logic	2	4	Practise
Point and non point sources of wastewater	3	4	Practise
Probability and Statistics	3	3	Practise
Surface Water Resources	2	3	Practise
Transformation of shapes	2	3	Practise
Atmospheric Chemistry	2	2	Practise
Basic vocabulary	1	2	Practise
Cell chemistry and cell biology	1	2	Practise
Differential Equations	1	2	Practise
Energy and Environment; Energy Sources	1	2	Practise
Environmental Management Systems; ISO14000 series; Environmental Auditing	2	2	Practise
Gaseous Pollutants	1	2	Practise
Groundwater Resources	1	2	Practise
Growth and control of microorganisms	1	2	Practise
Noise pollution	1	2	Practise
Prokaryotic and eukaryotic microorganisms	1	2	Practise
Quantitative Aptitude	1	2	Practise
Spatial Aptitude	2	2	Practise
Basic English grammar	1	1	Practise
Ecology and various ecosystems	1	1	Practise
Environmental Law and Policy	1	1	Practise
Fundamentals of Environmental Chemistry	1	1	Practise
Global effects of air pollution	1	1	Practise
Hazardous waste management	1	1	Practise
Microbial metabolism	1	1	Practise
Microbiology and health	1	1	Practise
Numerical computation and estimation	1	1	Practise
Sustainable Development	1	1	Practise
Water and wastewater quality parameters	1	1	Practise

03 · UNDERSTAND THE COVERAGE

What these numbers mean

Check the coverage and matching method before comparing years or choosing study priorities.

Only normalized labels matching the archived 2026 syllabus are included. 389 raw tag/year rows were omitted or consolidated.

For duplicate aliases, the existing row with the most questions is selected. Overlapping aliases are not summed. This is label matching, not an independently reviewed classification of every question.

6 papers · 390 imported questions. 0 have no topic tag and 390 have more than one imported tag, including metadata tags.

Each topic/year row counts unique tagged questions and their printed marks. Missing matches mean no matched tag data; they do not prove a topic was not tested.

04 · TURN COVERAGE INTO PRACTICE

Build a balanced revision plan

Combine historical coverage with your current strengths, mistakes and the complete syllabus.

Create a personalized AI study plan

Historical coverage, with context

Compare topics across all years

Principles of water chemistry

Municipal solid waste management

Quantitative Aptitude

Environmental Hydraulics

Calculus

Kinetics and reactor design

Particulate pollutants

Spatial Aptitude

Air pollution

Probability and Statistics

Water treatment methods

Differential Equations

Groundwater Resources

Surface Water Resources

Air quality management

Global effects of air pollution

Linear Algebra

Verbal Aptitude

Microbial metabolism

Prokaryotic and eukaryotic microorganisms

Environmental Law and Policy

Growth and control of microorganisms

Analytical Aptitude

Gaseous Pollutants

Hazardous waste management

Noise pollution

Cell chemistry and cell biology

Microbiology and health

Fundamentals of Environmental Chemistry

Management of biomedical waste, plastic waste and E waste

Water and wastewater quality parameters

Atmospheric Chemistry

Ecology and various ecosystems

Logic

Point and non point sources of wastewater

Soil chemistry

Air and Noise Pollution

Energy and Environment: Energy Sources

Sustainable Development

Transformation of shapes

Basic vocabulary

Environmental Management Systems; ISO14000 series; Environmental Auditing

Basic English grammar

Integrated solid waste management

Numerical computation and estimation

All topics · all archived years

Topics that recur in the selected years

Principles of water chemistry

Municipal solid waste management

Quantitative Aptitude

Environmental Hydraulics

Calculus

Kinetics and reactor design

Explore a year in detail

Air pollution

Principles of water chemistry

Water treatment methods

Linear Algebra

Municipal solid waste management

Particulate pollutants

Air quality management

Calculus

Environmental Hydraulics

Kinetics and reactor design

Logic

Point and non point sources of wastewater

Probability and Statistics

Surface Water Resources

Transformation of shapes

Atmospheric Chemistry

Basic vocabulary

Cell chemistry and cell biology

Differential Equations

Energy and Environment; Energy Sources

Environmental Management Systems; ISO14000 series; Environmental Auditing

Gaseous Pollutants

Groundwater Resources