1. Unit of Research in Radiation Biology & Environmental Radioactivity (URRBER), P.G & Research Department of Zoology, The New College (Autonomous), Affiliated to University of Madras, Chennai, India
2. UPASI Tea Research Foundation, Regional Centre, Coonoor, India
3. Department of Botany, Providence College for Women (Autonomous), Affiliated to Bharathiar University, Coonoor, India
4. Department of Geology, University of Madras, Chennai, India
5. VNU School of Interdisciplinary Studies, Vietnam National University, Hanoi, Vietnam
6. Department of Geology, Malankara Catholic College, Kanyakumari, India