Total 2,390,219 scientists, country 221, and institutions 24,464 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Shironica P Karunanayaka](https://cdn.adscientificindex.com/pictures/02/437339.jpg)
Educational Technology
e-Learning
Open Educational Resources
Instructional Design
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
14
0.583
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Nikhil K Sachan](https://cdn.adscientificindex.com/pictures/ac/5010998.jpg)
Education Administration
Pharmacy
Pharmaceutics
Health Sciences
Pharmaceutical Care
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
11
0.579
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Thanuja Sandanayake](https://cdn.adscientificindex.com/pictures/be/5733032.jpg)
Educational Technology & OER
E-Learning & Learning Analytics
OB Business & Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
8
0.667
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Rohana Ulluwishewa](https://cdn.adscientificindex.com/pictures/8c/407483.jpg)
Spirituality and Sustainability
Sustainable Development
Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Bg Jayatilleke|Buddhini Gayathri Jayatilleke](/user/assets/images/profile/no-profile-photo.png)
Educational Technology
Online Learning
Online Tutoring
Instructional Design
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
4
0.400
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Manjula Vithanapathirana](https://cdn.adscientificindex.com/pictures/c4/5732740.jpg)
Education
Multigrade teaching
Remedial teaching
Child Development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
3
0.429
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Jayantha Lal Ratnasekera](https://cdn.adscientificindex.com/pictures/aa/4751309.jpg)
Renewable energy sources
physical chemistry
science education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Madura Prabhani Pitigala Liyanage](https://cdn.adscientificindex.com/pictures/48/4501424.jpg)
Educational Data Mining
Machine Learning
Recommender Systems
Visual Programming
Database Systems
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Sameem Mam|Mohamed Aboobucker Mohamed Sameem](https://cdn.adscientificindex.com/pictures/1a/4792461.jpg)
English Language Teaching
Educational Psychology
Classroom Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Tiloka de Silva](/user/assets/images/profile/no-profile-photo.png)
Education
population economics
growth and development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
* Total i10 IndexRankings
Ranking Based On Selection: 11
![Fareed Mohamed Nawastheen|Fareed Mohamed Nawastheen, Mohamed Nawastheen, எப்.எம்.நவாஸ்தீன்](https://cdn.adscientificindex.com/pictures/1f/4750421.jpg)
Curriculum and Pedagogy
Education Technology
Teacher Education
Research methodology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Radhika De Silva (Krm De Silva)](/user/assets/images/profile/no-profile-photo.png)
writing for academic purposes
strategy instruction
language teacher education
language testing
Online learning
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Fouzul Kareema Mohamed Ismail](https://cdn.adscientificindex.com/pictures/8d/5732280.jpg)
Teaching Reading
language testing and Evaluation
Grammar for language teaching
Assessing Reading
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Asoka De Silva](https://cdn.adscientificindex.com/pictures/5c/4664641.jpg)
science education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Thilanka Ranathunga](https://cdn.adscientificindex.com/pictures/59/4825830.jpg)
Teaching
research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Kac Alwis](/user/assets/images/profile/no-profile-photo.png)
Special Education
Inclusive Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 17
![REV UPULDENIYE SONUTHTHARA](https://cdn.adscientificindex.com/pictures/70/5733105.jpg)
Education science / STEAM Education / Learning Dificulties / inclusive Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Ug Chandrajith](/user/assets/images/profile/no-profile-photo.png)
Science Education
STEM education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 19
![DVM De Silva|Dinayadura Vajira Manjarie De Silva](https://cdn.adscientificindex.com/pictures/a2/5732245.jpg)
Educational Psychology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 20
![Piumi Perera|Perera HPN, HPN Perera](https://cdn.adscientificindex.com/pictures/c6/5732979.jpg)
Sports Management
Financial Management
Sports Psychology
Strategic Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
* Total i10 IndexRankings
Ranking Based On Selection: 21
![Subhashinie Wijesundera|S D K Wijesundera, S. Wijesundera, Wijesundera S D K](https://cdn.adscientificindex.com/pictures/04/4747017.jpg)
Meta-cognition
Self regulated learning
Mathematics Education
Higher Education
Children's Well
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
* Total i10 IndexRankings
Ranking Based On Selection: 22
![Thevarasa Mukunthan](https://cdn.adscientificindex.com/pictures/40/4747226.jpg)
Early Childhood Education
Development of Mathematical Skills in Childhood
Early childhood
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
* Total i10 IndexRankings
Ranking Based On Selection: 23
![Mr K Ketheeswaran|Ketheeswaran. K](https://cdn.adscientificindex.com/pictures/72/4744638.jpg)
Special Needs Education
Inclusive Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
0
0.000
* Total i10 IndexRankings
Ranking Based On Selection: 24
![Rohan Abeywickrama](https://cdn.adscientificindex.com/pictures/bb/5733127.jpg)
Teacher Professional Development
The Psycho-Social Context of Teaching/Learning English
Modern
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 25
![NMRK Nawarathna|Rasika Nawarathna](/user/assets/images/profile/no-profile-photo.png)
Teacher Education
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Shironica P Karunanayaka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
14
0.583
Educational Technology
e-Learning
Open Educational Resources
Instructional Design
Nikhil K Sachan
University Grants Commission
Colombo, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
19
11
0.579
Education Administration
Pharmacy
Pharmaceutics
Health Sciences
Pharmaceutical Care
Thanuja Sandanayake
University of Moratuwa
Moratuwa, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
8
0.667
Educational Technology & OER
E-Learning & Learning Analytics
OB Business & Management
Rohana Ulluwishewa
University of Sri Jayewardenepura
Nugegoda, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
12
6
0.500
Spirituality and Sustainability
Sustainable Development
Education
Bg Jayatilleke|Buddhini Gayathri Jayatilleke
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
4
0.400
Educational Technology
Online Learning
Online Tutoring
Instructional Design
Manjula Vithanapathirana
University of Colombo
Colombo, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
7
3
0.429
Education
Multigrade teaching
Remedial teaching
Child Development
Jayantha Lal Ratnasekera
Uva Wellassa University
Badulla, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
6
4
0.667
Renewable energy sources
physical chemistry
science education
Madura Prabhani Pitigala Liyanage
University of Sri Jayewardenepura
Nugegoda, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
4
0.800
Educational Data Mining
Machine Learning
Recommender Systems
Visual Programming
Database Systems
Sameem Mam|Mohamed Aboobucker Mohamed Sameem
South Eastern University of Sri Lanka
Addalachchenai, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
English Language Teaching
Educational Psychology
Classroom Management
Tiloka de Silva
University of Moratuwa
Moratuwa, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
4
1.000
Education
population economics
growth and development
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Fareed Mohamed Nawastheen|Fareed Mohamed Nawastheen, Mohamed Nawastheen, எப்.எம்.நவாஸ்தீன்
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
Curriculum and Pedagogy
Education Technology
Teacher Education
Research methodology
Radhika De Silva (Krm De Silva)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
3
0.750
writing for academic purposes
strategy instruction
language teacher education
language testing
Online learning
Fouzul Kareema Mohamed Ismail
South Eastern University of Sri Lanka
Addalachchenai, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Teaching Reading
language testing and Evaluation
Grammar for language teaching
Assessing Reading
Asoka De Silva
National Institute of Education Sri Lanka
Maharagama, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Thilanka Ranathunga
Wayamba University of Sri Lanka
Kuliyapitiya, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Kac Alwis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
REV UPULDENIYE SONUTHTHARA
University of Peradeniya
Peradeniya, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Education science / STEAM Education / Learning Dificulties / inclusive Education
Ug Chandrajith
University of Colombo
Colombo, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Science Education
STEM education
DVM De Silva|Dinayadura Vajira Manjarie De Silva
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Piumi Perera|Perera HPN, HPN Perera
University of Sri Jayewardenepura
Nugegoda, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
Sports Management
Financial Management
Sports Psychology
Strategic Management
Subhashinie Wijesundera|S D K Wijesundera, S. Wijesundera, Wijesundera S D K
University of Peradeniya
Peradeniya, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
Meta-cognition
Self regulated learning
Mathematics Education
Higher Education
Children's Well
Thevarasa Mukunthan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
Early Childhood Education
Development of Mathematical Skills in Childhood
Early childhood
Mr K Ketheeswaran|Ketheeswaran. K
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
0
0.000
Special Needs Education
Inclusive Education
Rohan Abeywickrama
Sabaragamuwa University
Sendai, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Teacher Professional Development
The Psycho-Social Context of Teaching/Learning English
Modern
NMRK Nawarathna|Rasika Nawarathna
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000