Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Environmental Hydrology
Environmental Geology
Remote Sensing & GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,922
11,070
0.695
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Enhanced Oil Recovery
Gas Hydrates
Surfactant
Microemulsion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,955
10,588
0.817
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
water quality
water treatment
anaerobic hybrid reactor
wastewater engineering
solid waste
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,258
9,497
0.520
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Conventional/Non-conventional Machining processes
Nano-cutting fluid
Additive Manufacturing.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,502
6,640
0.885
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
Chemical engg.
Environmental engg.
Coal gasification
coal to chemicals
biomass energy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,011
6,419
0.401
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Wireless Sensor Networks
Internet of Things
Cloud Computing
Fog Computing
Machine Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,911
5,636
0.712
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
Ecorestoration of mine degraded land
Biodiversity conservation
Biological Wastewater Treatment
Bioremediation
Water pollutio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,672
5,504
0.717
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Gree/Eco-Innovation
Green & Sustainable Supply Chain
Multi Criteria Decision Making
Circular Economy and Aviation Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,355
5,089
0.950
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
FRP Composite Material
EDM
Fracture Mechanics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,276
4,368
0.600
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Manufacturing
Welding
Advanced Manufacturing
Supply Chain Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,974
4,296
0.864
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
Optical Fiber Sensor
Photonic Fiber Crystal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,660
4,254
0.555
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
Spatial Analysis
Environmental Science and Engineering
Adsorption
Life Cycle Assessment and Civil
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,859
4,220
0.868
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
Organizational Behaviour
I-O Psychology
Positive/Applied Psychology
Human Resource Development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,556
4,102
0.900
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
Thermal Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,446
3,921
0.720
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
IoT
Edge AI
Cloud AI
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,038
3,831
0.949
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Polymer Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,889
3,760
0.546
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Numerical Methods
Magnetohydrodynamics
Heat and Mass Transfer
Nanofluids
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,191
3,592
0.692
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
Nanomaterials
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,338
3,578
0.670
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Cryptography
Security
Networks
VLSI
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,033
3,383
0.672
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
Hydraulic fracturing
unconventional hydrocarbons
reservoir engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,974
3,252
0.654
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
Atomic and Molecular Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,790
3,176
0.663
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
Non traditional micro-machining
New materials/coating development using Lasers
Nano-particle
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,305
3,066
0.928
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
Laser Spectroscopy
Rare Earth Spectroscopy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,814
2,998
0.623
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
Metamaterials
MIMO Antennas
Absorbers
Dielectric Resonator Antenna
EM Propagation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,715
2,997
0.807
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,518
2,971
0.845
Prasoon Kumar Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
15,922
11,070
0.695
Environmental Hydrology
Environmental Geology
Remote Sensing & GIS
Ajay Mandal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,955
10,588
0.817
Sunil Kumar Gupta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,258
9,497
0.520
water quality
water treatment
anaerobic hybrid reactor
wastewater engineering
solid waste
Amit Rai Dixit
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,502
6,640
0.885
Conventional/Non-conventional Machining processes
Nano-cutting fluid
Additive Manufacturing.
Indra Mani Mishra
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,011
6,419
0.401
Chemical engg.
Environmental engg.
Coal gasification
coal to chemicals
biomass energy
Prasanta K Jana
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,911
5,636
0.712
Wireless Sensor Networks
Internet of Things
Cloud Computing
Fog Computing
Machine Learning
Subodh Kumar Maiti
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,672
5,504
0.717
Ecorestoration of mine degraded land
Biodiversity conservation
Biological Wastewater Treatment
Bioremediation
Water pollutio
Himanshu Gupta
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,355
5,089
0.950
Gree/Eco-Innovation
Green & Sustainable Supply Chain
Multi Criteria Decision Making
Circular Economy and Aviation Management
KK Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,276
4,368
0.600
Somnath Chattopadhyaya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,974
4,296
0.864
Manufacturing
Welding
Advanced Manufacturing
Supply Chain Management
Vinod Singh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,660
4,254
0.555
Optical Fiber Sensor
Photonic Fiber Crystal
Sukha Ranjan Samadder
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,859
4,220
0.868
Spatial Analysis
Environmental Science and Engineering
Adsorption
Life Cycle Assessment and Civil
Govind Swaroop Pathak
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,556
4,102
0.900
Organizational Behaviour
I-O Psychology
Positive/Applied Psychology
Human Resource Development
Subrata Kumar Ghosh
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,446
3,921
0.720
Tarachand Amgoth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,038
3,831
0.949
Sagar Pal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,889
3,760
0.546
Gauri Shanker Seth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,191
3,592
0.692
Numerical Methods
Magnetohydrodynamics
Heat and Mass Transfer
Nanofluids
Sumanta Kumar Sahu
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,338
3,578
0.670
Gp Biswas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,033
3,383
0.672
Cryptography
Security
Networks
VLSI
Keka Ojha
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,974
3,252
0.654
Hydraulic fracturing
unconventional hydrocarbons
reservoir engineering
Pankaj Verma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,790
3,176
0.663
AK Das
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,305
3,066
0.928
Non traditional micro-machining
New materials/coating development using Lasers
Nano-particle
Kaushal Kumar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,814
2,998
0.623
Raghvendra Kumar Chaudhary
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,715
2,997
0.807
Metamaterials
MIMO Antennas
Absorbers
Dielectric Resonator Antenna
EM Propagation
Niladri Das
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,518
2,971
0.845