Citation Rankings
Highly Cited Researchers

Highly Cited Researchers Citation Rankings 2025

The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.

* Total Citation Counts Rankings
Ranking Based On Selection: 1
India
Kumaresan Ramanathan
Clinical Biochemistry and Molecular Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
530
388
0.732
* Total Citation Counts Rankings
Ranking Based On Selection: 2
India
Cholarajan A
Actinobacteriology
Agricultural Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
403
322
0.799
* Total Citation Counts Rankings
Ranking Based On Selection: 3
India
Karthick Rengasamy
Nanomaterials and Crystal Growth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
380
364
0.958
* Total Citation Counts Rankings
Ranking Based On Selection: 4
India
S Raja
Marine fungi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
197
0.592
* Total Citation Counts Rankings
Ranking Based On Selection: 5
India
Umadevi Pongiya
Medical Biochemistry
Mental Health Care
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
229
69
0.301
* Total Citation Counts Rankings
Ranking Based On Selection: 6
India
P.Gajalakshmi
Microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
211
117
0.555
* Total Citation Counts Rankings
Ranking Based On Selection: 7
India
J.Surya
Sanga illakiyam
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
205
177
0.863
* Total Citation Counts Rankings
Ranking Based On Selection: 8
India
C.Sangavai
Biotechnology
Microbiology
Bioinformatics
Molecular system engineering
Biofuel production
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
129
0.772
* Total Citation Counts Rankings
Ranking Based On Selection: 9
India
Muthusamy Chinnasamy
Bioinformatics and Biotechnology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74
72
0.973
* Total Citation Counts Rankings
Rankings
895,722
India
32,734
1
Ranking Based On Selection: 1
Kumaresan Ramanathan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
530
388
0.732
* Total Citation Counts Rankings
Rankings
1,005,655
India
37,683
2
Ranking Based On Selection: 2
Cholarajan A
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
403
322
0.799
* Total Citation Counts Rankings
Rankings
1,028,782
India
38,720
3
Ranking Based On Selection: 3
Karthick Rengasamy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
380
364
0.958
* Total Citation Counts Rankings
Rankings
1,082,160
India
41,176
4
Ranking Based On Selection: 4
S Raja
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
333
197
0.592
* Total Citation Counts Rankings
Rankings
1,238,583
India
48,256
5
Ranking Based On Selection: 5
Umadevi Pongiya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
229
69
0.301
* Total Citation Counts Rankings
Rankings
1,273,009
India
49,840
6
Ranking Based On Selection: 6
P.Gajalakshmi
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
211
117
0.555
* Total Citation Counts Rankings
Rankings
1,284,624
India
50,352
7
Ranking Based On Selection: 7
J.Surya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
205
177
0.863
* Total Citation Counts Rankings
Rankings
1,372,371
India
54,426
8
Ranking Based On Selection: 8
C.Sangavai
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
167
129
0.772
Biotechnology
Microbiology
Bioinformatics
Molecular system engineering
Biofuel production
* Total Citation Counts Rankings
Rankings
1,699,667
India
72,448
9
Ranking Based On Selection: 9
Muthusamy Chinnasamy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74
72
0.973