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World Scientist and University Rankings 2026
India Engineering & Technology / Environmental Science & Engineering 1.428 Scientists Subject Rankings
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 5 years. As of Jan 05, 2026, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (1.131.911) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H Index Rankings
Rankings
15,523
World Rank
109
Country Rank
1
University
Ranking Based On Selection:
1
Engineering & Technology / Environmental Science & Engineering
Environmental Chemistry | sustainable adsorbents | Biochar | Biochar use in water | soil & climate change mitigatio
Environmental Chemistry | sustainable adsorbents | Biochar | Biochar use in water | soil & climate change mitigatio
H-Index Metrics
-
H-Index90
-
i10 Index160
-
Citation Counts58,521
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* Total H Index Rankings
Rankings
19,128
World Rank
139
Country Rank
1
University
Ranking Based On Selection:
2
Engineering & Technology / Environmental Science & Engineering
Environmental Science and Environmental Biotechnolog
Environmental Science and Environmental Biotechnolog
H-Index Metrics
-
H-Index85
-
i10 Index211
-
Citation Counts23,009
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* Total H Index Rankings
Rankings
20,098
World Rank
148
Country Rank
1
University
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
Waste to energy | waste managmnt | air&water quality modelling | CFD | Chemical Industry Process safet
Waste to energy | waste managmnt | air&water quality modelling | CFD | Chemical Industry Process safet
H-Index Metrics
-
H-Index84
-
i10 Index293
-
Citation Counts25,221
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* Total H Index Rankings
Rankings
31,309
World Rank
250
Country Rank
1
University
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
Water and Wastewater Treatment | Advanced oxidation proces
Water and Wastewater Treatment | Advanced oxidation proces
H-Index Metrics
-
H-Index73
-
i10 Index154
-
Citation Counts18,421
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* Total H Index Rankings
Rankings
34,299
World Rank
292
Country Rank
2
University
Ranking Based On Selection:
5
* Total H Index Rankings
Rankings
35,730
World Rank
301
Country Rank
4
University
Ranking Based On Selection:
6
Engineering & Technology / Environmental Science & Engineering
Microbial fuel cell | Anaerobic wastewater treatment | Bioelectrochemistry | Environmental Engineerin
Microbial fuel cell | Anaerobic wastewater treatment | Bioelectrochemistry | Environmental Engineerin
H-Index Metrics
-
H-Index70
-
i10 Index262
-
Citation Counts17,142
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* Total H Index Rankings
Rankings
39,283
World Rank
350
Country Rank
1
University
Ranking Based On Selection:
7
Engineering & Technology / Environmental Science & Engineering
Environmental microbiology/ Bioremediatio
Environmental microbiology/ Bioremediatio
H-Index Metrics
-
H-Index68
-
i10 Index418
-
Citation Counts22,849
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* Total H Index Rankings
Rankings
40,994
World Rank
377
Country Rank
1
University
Ranking Based On Selection:
8
* Total H Index Rankings
Rankings
41,207
World Rank
384
Country Rank
3
University
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
Biogeochemsitry | hydrogeochemistry | Glaciology | hydrochemistry | Ground wate
Biogeochemsitry | hydrogeochemistry | Glaciology | hydrochemistry | Ground wate
H-Index Metrics
-
H-Index67
-
i10 Index229
-
Citation Counts14,703
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* Total H Index Rankings
Rankings
41,479
World Rank
386
Country Rank
3
University
Ranking Based On Selection:
10
Engineering & Technology / Environmental Science & Engineering
water quality | water treatment | anaerobic hybrid reactor | wastewater engineering | solid wast
water quality | water treatment | anaerobic hybrid reactor | wastewater engineering | solid wast
H-Index Metrics
-
H-Index67
-
i10 Index423
-
Citation Counts21,043
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* Total H Index Rankings
Rankings
42,683
World Rank
406
Country Rank
2
University
Ranking Based On Selection:
11
Engineering & Technology / Environmental Science & Engineering
Agriculture Microbiology | Environmental Microbiolog
Agriculture Microbiology | Environmental Microbiolog
H-Index Metrics
-
H-Index66
-
i10 Index145
-
Citation Counts14,818
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* Total H Index Rankings
Rankings
42,909
World Rank
410
Country Rank
8
University
Ranking Based On Selection:
12
Engineering & Technology / Environmental Science & Engineering
Water and Wastewater treatment | Wastewater recycling and reuse | Urban Environmental Planning | Wate
Water and Wastewater treatment | Wastewater recycling and reuse | Urban Environmental Planning | Wate
H-Index Metrics
-
H-Index66
-
i10 Index161
-
Citation Counts17,009
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* Total H Index Rankings
Rankings
44,706
World Rank
436
Country Rank
3
University
Ranking Based On Selection:
13
Engineering & Technology / Environmental Science & Engineering
Environmental Microbiology & Biotechnolog
Environmental Microbiology & Biotechnolog
H-Index Metrics
-
H-Index65
-
i10 Index156
-
Citation Counts16,577
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* Total H Index Rankings
Rankings
45,196
World Rank
446
Country Rank
1
University
Ranking Based On Selection:
14
Engineering & Technology / Environmental Science & Engineering
Environment | Energy | Climate Change | Modeling | Polic
Environment | Energy | Climate Change | Modeling | Polic
H-Index Metrics
-
H-Index65
-
i10 Index191
-
Citation Counts41,452
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* Total H Index Rankings
Rankings
45,235
World Rank
447
Country Rank
2
University
Ranking Based On Selection:
15
Engineering & Technology / Environmental Science & Engineering
Environmental Science | Water Treatment | Physical Chemistr
Environmental Science | Water Treatment | Physical Chemistr
H-Index Metrics
-
H-Index65
-
i10 Index80
-
Citation Counts19,314
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* Total H Index Rankings
Rankings
46,915
World Rank
474
Country Rank
6
University
Ranking Based On Selection:
16
Engineering & Technology / Environmental Science & Engineering
Environmental Health | Occupational Health | & Climate Change & Healt
Environmental Health | Occupational Health | & Climate Change & Healt
H-Index Metrics
-
H-Index64
-
i10 Index134
-
Citation Counts18,547
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* Total H Index Rankings
Rankings
47,029
World Rank
479
Country Rank
6
University
Ranking Based On Selection:
17
Engineering & Technology / Environmental Science & Engineering
Environmental Microbiology and Biotechnology | Bioremediation | bioconversion and detoxification | Carbon dioxide sequestration an
Environmental Microbiology and Biotechnology | Bioremediation | bioconversion and detoxification | Carbon dioxide sequestration an
H-Index Metrics
-
H-Index64
-
i10 Index205
-
Citation Counts13,653
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* Total H Index Rankings
Rankings
50,340
World Rank
537
Country Rank
1
University
Ranking Based On Selection:
18
Engineering & Technology / Environmental Science & Engineering
water institutions & policies | cooperatives and farmer organizations | water-energy-food nexu
water institutions & policies | cooperatives and farmer organizations | water-energy-food nexu
H-Index Metrics
-
H-Index63
-
i10 Index162
-
Citation Counts14,950
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* Total H Index Rankings
Rankings
51,591
World Rank
556
Country Rank
7
University
Ranking Based On Selection:
19
* Total H Index Rankings
Rankings
51,816
World Rank
566
Country Rank
1
University
Ranking Based On Selection:
20
Engineering & Technology / Environmental Science & Engineering
air quality monitoring | air pollutio
air quality monitoring | air pollutio
H-Index Metrics
-
H-Index62
-
i10 Index240
-
Citation Counts13,560
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* Total H Index Rankings
Rankings
52,169
World Rank
574
Country Rank
8
University
Ranking Based On Selection:
21
Engineering & Technology / Environmental Science & Engineering
Rainfall-runoff-sediment yield modelling | dam break analysis | water audit | EIA/EMP studie
Rainfall-runoff-sediment yield modelling | dam break analysis | water audit | EIA/EMP studie
H-Index Metrics
-
H-Index62
-
i10 Index228
-
Citation Counts13,850
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* Total H Index Rankings
Rankings
54,317
World Rank
605
Country Rank
4
University
Ranking Based On Selection:
22
Engineering & Technology / Environmental Science & Engineering
Environmental Science and Technology | Renewable energy | Chemical Engineering | Atmospheric science and Technolog
Environmental Science and Technology | Renewable energy | Chemical Engineering | Atmospheric science and Technolog
H-Index Metrics
-
H-Index61
-
i10 Index144
-
Citation Counts13,825
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* Total H Index Rankings
Rankings
55,132
World Rank
620
Country Rank
2
University
Ranking Based On Selection:
23
* Total H Index Rankings
Rankings
55,782
World Rank
632
Country Rank
8
University
Ranking Based On Selection:
24
Engineering & Technology / Environmental Science & Engineering
Activated carbons | Solid waste recycling | Water and Wastewater treatments | Wasteland reclamatio
Activated carbons | Solid waste recycling | Water and Wastewater treatments | Wasteland reclamatio
H-Index Metrics
-
H-Index61
-
i10 Index109
-
Citation Counts20,195
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* Total H Index Rankings
Rankings
59,072
World Rank
681
Country Rank
10
University
Ranking Based On Selection:
25
Engineering & Technology / Environmental Science & Engineering
PGPR-Sustainable Agriculture | Plant-microbes interaction | Bioremediation | Bioethanol Production | Plant microbiom
PGPR-Sustainable Agriculture | Plant-microbes interaction | Bioremediation | Bioethanol Production | Plant microbiom
H-Index Metrics
-
H-Index59
-
i10 Index123
-
Citation Counts14,409
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