Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 460 Scientists Citation Rankings - 2025
Discover the world’s highly cited researchers through the AD Scientific Index 2025 Citation Rankings.
These rankings evaluate scientists based on their total and recent citation counts, capturing the breadth and real-time currency of academic recognition. Citation data reveals how widely a scholar’s work is referenced, applied, and extended across diverse disciplines. The rankings are routinely updated to reflect ongoing citation growth, while eliminating distortions from excessive co-authorship and institutional inflation. Premium tools provide access to detailed citation dynamics, unethical citation behavior detection, and field-normalized benchmarking.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Image processing feature extraction
Optimization Algorithm
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,491
5,729
0.267
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* Total Citation Counts Rankings
Ranking Based On Selection: 2
Strategic Management
Economics
Operation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,569
8,304
0.424
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Thermal Storage
Building
Nanofluids
PCM
Sola
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,940
10,398
0.580
* Total Citation Counts Rankings
Ranking Based On Selection: 4
Nanoscience & Technology
Crystal Technology
Materials Scienc
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,133
8,261
0.512
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Environmental Science and Technology
Renewable energy
Chemical Engineering
Atmospheric science and Technolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,276
6,106
0.460
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Energ
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,126
6,297
0.480
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Alternative Fuels
Engine Management System
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,163
5,059
0.416
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Nanocomposite
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,854
5,833
0.492
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Hydrogeology
hydrogeochemistry
groundwater modelin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,436
7,044
0.616
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* Total Citation Counts Rankings
Ranking Based On Selection: 10
HR
Marketing
Finance
General Business Administratio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,295
5,162
0.457
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Chemistry
Catalysi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,630
2,789
0.262
* Total Citation Counts Rankings
Ranking Based On Selection: 12
structural engineerin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,600
5,564
0.525
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Process Control & Optimizatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,435
5,246
0.503
* Total Citation Counts Rankings
Ranking Based On Selection: 14
Integrated Coastal Zone Management
Disaster Management in Coastal Areas and Mitigation
Biogeochemical Cycles
Marinetoxicolog
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,362
5,763
0.556
* Total Citation Counts Rankings
Ranking Based On Selection: 15
Environmental Monitoring
Waste to Wealth
CO2 Utilizatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,213
3,551
0.348
* Total Citation Counts Rankings
Ranking Based On Selection: 16
ultrasonics investigation
CRYSTAL GROWTH
Nano synthesi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,891
1,785
0.180
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Cryptography
Information Security
VANET Security
Blockchai
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,464
8,583
0.907
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Surface Engineering
Materials
Tribology
Mechanical behaviour of Material
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,723
5,254
0.602
* Total Citation Counts Rankings
Ranking Based On Selection: 19
crystal growth
semiconductors
characterisatio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,989
4,564
0.571
* Total Citation Counts Rankings
Ranking Based On Selection: 20
nano materials corrosion and biomaterials
inhibitors
coatings
titanium alloy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,801
3,988
0.511
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Stem Cells Biology
Cancer Biology
Tissue Engineering and Regenerative Medicin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,089
2,978
0.420
* Total Citation Counts Rankings
Ranking Based On Selection: 22
Materials Science and Engineering
Metallurgy
Materials Processing
Mechanical Behavior of Material
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,059
1,938
0.275
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Thermal Engineering
Refrigeration and Air-Conditioning
Heat Transfer
Cryogenic Treatment of Material
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,985
3,106
0.445
* Total Citation Counts Rankings
Ranking Based On Selection: 24
catalysis
nanomaterial
biofuel
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,959
2,795
0.402
* Total Citation Counts Rankings
Ranking Based On Selection: 25
Hydrogeology
Geospatial Technology (Remote Sensing & GIS)
Mining Geology & Environmenta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,781
5,709
0.842
* Total Citation Counts Rankings
Rankings
39,286
322
1
Ranking Based On Selection: 1
Nagalakshmi Ashok
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,491
5,729
0.267
Image processing feature extraction
Optimization Algorithm
* Total Citation Counts Rankings
Rankings
44,711
398
2
Ranking Based On Selection: 2
Dakshinamurthy Thangaraj
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
19,569
8,304
0.424
Strategic Management
Economics
Operation
* Total Citation Counts Rankings
Rankings
50,357
464
3
Ranking Based On Selection: 3
Velraj R
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,940
10,398
0.580
Thermal Storage
Building
Nanofluids
PCM
Sola
* Total Citation Counts Rankings
Rankings
58,000
595
4
Ranking Based On Selection: 4
Ramasamy Jayavel
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,133
8,261
0.512
Nanoscience & Technology
Crystal Technology
Materials Scienc
* Total Citation Counts Rankings
Rankings
74,740
863
5
Ranking Based On Selection: 5
Sivanesan Subramanian
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,276
6,106
0.460
Environmental Science and Technology
Renewable energy
Chemical Engineering
Atmospheric science and Technolog
* Total Citation Counts Rankings
Rankings
75,816
880
6
Ranking Based On Selection: 6
Iniyan S
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,126
6,297
0.480
* Total Citation Counts Rankings
Rankings
83,188
1,000
7
Ranking Based On Selection: 7
G Nagarajan
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,163
5,059
0.416
Alternative Fuels
Engine Management System
* Total Citation Counts Rankings
Rankings
85,813
1,043
8
Ranking Based On Selection: 8
Alagar Muthukaruppan
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,854
5,833
0.492
* Total Citation Counts Rankings
Rankings
89,662
1,133
9
Ranking Based On Selection: 9
Elango Lakshmanan
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,436
7,044
0.616
Hydrogeology
hydrogeochemistry
groundwater modelin
* Total Citation Counts Rankings
Rankings
90,972
1,156
10
Ranking Based On Selection: 10
S. Kumar
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,295
5,162
0.457
HR
Marketing
Finance
General Business Administratio
Smart Institutional Plan
Powerful Insights + Smart Membership = Institutional Success
Unlock 360° Real-Time Institutional Analysis to identify your institution’s strengths and areas for improvement.
* Total Citation Counts Rankings
Rankings
97,684
1,269
11
Ranking Based On Selection: 11
Muthiahpillai Palanichamy
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,630
2,789
0.262
* Total Citation Counts Rankings
Rankings
97,989
1,281
12
Ranking Based On Selection: 12
Bala Chandiran
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,600
5,564
0.525
* Total Citation Counts Rankings
Rankings
99,773
1,307
13
Ranking Based On Selection: 13
Saravana Kumar S
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,435
5,246
0.503
* Total Citation Counts Rankings
Rankings
100,582
1,320
14
Ranking Based On Selection: 14
Ramesh Ramachandran
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,362
5,763
0.556
Integrated Coastal Zone Management
Disaster Management in Coastal Areas and Mitigation
Biogeochemical Cycles
Marinetoxicolog
* Total Citation Counts Rankings
Rankings
102,341
1,357
15
Ranking Based On Selection: 15
Kandasamy Palanivelu
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,213
3,551
0.348
Environmental Monitoring
Waste to Wealth
CO2 Utilizatio
* Total Citation Counts Rankings
Rankings
106,098
1,428
16
Ranking Based On Selection: 16
Gayathri Gs
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,891
1,785
0.180
* Total Citation Counts Rankings
Rankings
111,625
1,531
17
Ranking Based On Selection: 17
P. Vijayakumar|Pandi Vijayakumar
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,464
8,583
0.907
Cryptography
Information Security
VANET Security
Blockchai
* Total Citation Counts Rankings
Rankings
122,336
1,758
18
Ranking Based On Selection: 18
A Elayaperumal
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,723
5,254
0.602
Surface Engineering
Materials
Tribology
Mechanical behaviour of Material
* Total Citation Counts Rankings
Rankings
134,858
2,021
19
Ranking Based On Selection: 19
J Kumar
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,989
4,564
0.571
* Total Citation Counts Rankings
Rankings
138,397
2,110
20
Ranking Based On Selection: 20
N Rajendran
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,801
3,988
0.511
nano materials corrosion and biomaterials
inhibitors
coatings
titanium alloy
* Total Citation Counts Rankings
Rankings
153,204
2,420
21
Ranking Based On Selection: 21
Gauthaman Kalamegam
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,089
2,978
0.420
Stem Cells Biology
Cancer Biology
Tissue Engineering and Regenerative Medicin
* Total Citation Counts Rankings
Rankings
153,927
2,437
22
Ranking Based On Selection: 22
KA Padmanabhan
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,059
1,938
0.275
Materials Science and Engineering
Metallurgy
Materials Processing
Mechanical Behavior of Material
* Total Citation Counts Rankings
Rankings
155,635
2,472
23
Ranking Based On Selection: 23
D Mohan Lal
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,985
3,106
0.445
Thermal Engineering
Refrigeration and Air-Conditioning
Heat Transfer
Cryogenic Treatment of Material
* Total Citation Counts Rankings
Rankings
156,242
2,488
24
Ranking Based On Selection: 24
A Pandurangan
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,959
2,795
0.402
* Total Citation Counts Rankings
Rankings
160,414
2,575
25
Ranking Based On Selection: 25
T Subramani
Anna University
Chennai, India
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,781
5,709
0.842
Hydrogeology
Geospatial Technology (Remote Sensing & GIS)
Mining Geology & Environmenta