MBB College

⊟ Specialization

Environmental management and restoration

My areas of specialization encompass Remote Sensing and Geographic Information Systems (GIS), Forestry and Environmental Management, Biodiversity Conservation, Forest Ecology, Climate Change Mitigation and Adaptation, and Ecosystem Carbon Assessment. My research expertise focuses on geospatial analysis and land-use/land-cover dynamics, forest inventory and biomass estimation, carbon stock assessment and sequestration, agroforestry systems, landscape ecology, and sustainable natural resource management. My interdisciplinary research further extends to climate change vulnerability and socio-ecological resilience, indigenous ecological knowledge, urban green-space ecology, ecosystem restoration, and environmental pollution assessment, with particular emphasis on microplastic contamination and its ecological implications. My work integrates field-based ecological investigations, geospatial technologies, and quantitative environmental assessments to address emerging challenges in biodiversity conservation, climate resilience, ecosystem sustainability, and evidence-based environmental planning, particularly in the Eastern Himalayan and Northeast Indian regions.

⊞ Areas of interest

⊞ Publications

Serial	Title	Journal	Author(s)	Other Information
01	Quantifying carbon stocks and sequestration potential in agroforestry systems under divergent management scenarios relevant to India’s Nationally Determined Contribution	Journal of Cleaner Production	Arun Jyoti Nath, Gudeta Weldesemayat Sileshi, Sabina Yasmin Laskar, Karabi Pathak, Demsai Reang, Amitabha Nath, Ashesh Kumar Das	2021; Volume 281; Article 124831; Elsevier; DOI: 10.1016/j.jclepro.2020.124831
02	Coupled human-environment system amid COVID-19 crisis: A conceptual model to understand the nexus	Science of the Total Environment	Priyanka Sarkar, Nirmal Debnath, Demsai Reang*	2021; Volume 753; Article 141757; Elsevier; DOI: 10.1016/j.scitotenv.2020.141757; Online publication: 2020
03	Post-fire restoration of land under shifting cultivation: A case study of pineapple agroforestry in the Sub-Himalayan region	Journal of Environmental Management	Demsai Reang, Arun Jyoti Nath, Gudeta Weldesemayat Sileshi, Animekh Hazarika, Ashesh Kumar Das	2022; Volume 305; Article 114372; Elsevier; DOI: 10.1016/j.jenvman.2021.114372
04	Assessing tree diversity and carbon storage during land use transitioning from shifting cultivation to indigenous agroforestry systems: Implications for REDD+ initiatives	Journal of Environmental Management	Demsai Reang, Animekh Hazarika, Gudeta W. Sileshi, Rajiv Pandey, Ashesh Kumar Das, Arun Jyoti Nath	2021; Volume 298; Article 113470; Elsevier; DOI: 10.1016/j.jenvman.2021.113470
05	Incidence of microplastic contamination in fishes of the Ramsar Wetland, Loktak – The world's only floating lake from the Indian Himalayan region	Journal of Environmental Management	Pallabi Borah, Naphibaniarlin Kshiar, Demsai Reang*, Arun Jyoti Nath, Kushal Kumar Baruah	2024; Volume 358; Article 120928; Elsevier; DOI: 10.1016/j.jenvman.2024.120928
06	Geochemical fractionation of iron in paper industry and municipal landfill soils: Ecological and health risks insights	Environmental Research	Pallabi Borah, Sudip Mitra, Demsai Reang*	2024; Volume 250; Article 118508; Elsevier; DOI: 10.1016/j.envres.2024.118508
07	Green-synthesised silver nanoparticles using sewage-derived fish gut bacteria with antibacterial potential against AmpC-β producing Escherichia coli	Frontiers in Nanotechnology	Dipayan Das, Birson Ingti, Jaya Jamatia, Toi Ete, Demsai Reang, Anupama Moirangthem, Inderjeet Kaur, Ranjay Kumar Choudhary, Payel Paul, Nitesh Priyadarshi	2026; Volume 8; Article 1828425; Frontiers Media; DOI: 10.3389/fnano.2026.1828425
08	Climate change vulnerability and adaptation among farmers practicing shifting agriculture in the Indian Himalayas	Environmental and Sustainability Indicators	Animekh Hazarika, Arun Jyoti Nath, Demsai Reang, Rajiv Pandey, Gudeta W. Sileshi, Ashesh Kumar Das	2024; Volume 23; Article 100430; Elsevier; DOI: 10.1016/j.indic.2024.100430
09	Tree diversity, soil organic carbon lability and ecosystem carbon storage under a fallow age chronosequence in North East India	Environmental and Sustainability Indicators	Panna Chandra Nath, Arun Jyoti Nath, Demsai Reang, Rattan Lal, Ashesh Kumar Das	2021; Volume 10; Article 100122; Elsevier; DOI: 10.1016/j.indic.2021.100122
10	The Shifting Cultivation Juggernaut: An Attribution Problem	Global Challenges	Arun Jyoti Nath, Demsai Reang, Gudeta W. Sileshi	2022; Volume 6; Issue 8; Article 2200051; Wiley; DOI: 10.1002/gch2.202200051
11	Variations in diversity and distribution patterns of tree species under protected areas of Barak valley in the Eastern Indian Himalayas	Geology, Ecology, and Landscapes	Demsai Reang, Aparajita Deb, Ashesh Kumar Das	2026; Volume 10; Issue 1; Pages 277–293; Taylor & Francis; DOI: 10.1080/24749508.2025.2449717; Online publication: 2025
12	First evidence of microplastic contamination in surface waters of Loktak Lake, a Ramsar site in the Eastern Himalayas	Scientific Reports (Nature)	Pallabi Borah, Naphibaniarlin Kshiar, Arun Jyoti Nath, Sneha Dutta Chowdhury, Demsai Reang*	2026; Volume 16; Article 23401; Nature Portfolio, Springer Nature; DOI: 10.1038/s41598-026-54098-8
13	Piper agroforestry in the Indian Himalayas: indigenous peoples’ practices, policies and incentives	CABI Agriculture and Bioscience	Demsai Reang, Animekh Hazarika, Gudeta Weldesemayat Sileshi, Arun Jyoti Nath, Venkatesh Paramesh, W. Reshmi Singha, Ashesh Kumar Das	2024; Volume 5; Issue 1; Article 9; Springer Nature; DOI: 10.1186/s43170-024-00214-5
14	Allometric Models for Estimation of Forest Biomass in North East India	Forests	Arun Jyoti Nath, Brajesh Kumar Tiwari, Gudeta W. Sileshi, Uttam Kumar Sahoo, Biplab Brahma, Sourabh Deb, Ningthoujam Bijayalaxmi Devi, Ashesh Kumar Das, Demsai Reang, Shiva Shankar Chaturvedi, Om Prakash Tripathi, Dhruba Jyoti Das, Asha Gupta	2019; Volume 10; Issue 2; Article 103; MDPI; DOI: 10.3390/f10020103
15	Woody composition, structure, and carbon storage potential of urban green space across sectors in a high-altitude ridgeline city, Aizawl, Eastern Indian Himalaya	Urban Ecosystems	Paul Lalremsanga, Lalruatliana Khawlhring, Demsai Reang, Uttam Kumar Sahoo, Pushkal Baghchie	2026; Volume 29; Issue 4; Article 195; Springer Nature; DOI: 10.1007/s11252-026-02059-4
16	Ethnic homestead forests of North-East India revealed as diverse land-use systems	Agroforestry Systems	Demsai Reang, Uttam Kumar Sahoo, Krishna Giri, Animekh Hazarika, Arun Jyoti Nath	2022; Volume 96; Issue 3; Pages 465–478; Springer Nature; DOI: 10.1007/s10457-021-00700-z
17	Spatial patterns and health risks of heavy metals in groundwater along an urban–periurban gradient in Kamrup, Assam, India	Journal of Trace Elements and Minerals	Manub Jyoti Talukdar, Pallabi Borah, Demsai Reang, Mayuri Chabukdhara	2026; Volume 17; Article 100304; Elsevier; DOI: 10.1016/j.jtemin.2026.100304
18	New additional records to Assam biota from Golaghat District, Northeast India	Plant Science Today	Sabnam Sultana, Gaurav Kumar Mishra, Jintu Sarma, Demsai Reang, Anushree Baruah	2026; Volume 13; Issue 2; Horizon e-Publishing Group; DOI: 10.14719/pst.11530
19	Gregarious Flowering in Dendrocalamus longispathus (Kurz) Kurz in North East India	Indian Forester	Nirmal Debnath, Arun Jyoti Nath, Demsai Reang, Ashesh Kumar Das	2020; Volume 146; Issue 4; Pages 359–360; DOI: 10.36808/if/2020/v146i4/144637
20	Heterogeneous landscape assessment using multitemporal LISS4 and hybrid approach: A case study in Barak Valley, India	Indian Journal of Ecology	Demsai Reang, Aparajita De, Ashesh Kumar Das	2020; Volume 47; Issue 3; Pages 842–848; Indian Ecological Society
21	New locality records of the ‘Dancing Girl’ of Mizoram, a rare zinger species	Journal of Threatened Taxa	Aparajita De, Demsai Reang	2016; Volume 8; Issue 5; Pages 8841–8843; DOI: 10.11609/jott.2051.8.5.8841-8843
22	Notes on the recollection of Ormosia pinnata (Leguminosae subfam. Papilionoideae)	Nelumbo	Demsai Reang, Prabhat Kumar Hajra, Aparajita De	2019; Volume 61; Issue 1; Pages 27–29; Botanical Survey of India; DOI: 10.20324/nelumbo/v61/2019/142606
23	Forest Health Degradation in Barak Valley: A NDVI-Based Study	Indian Journal of Forestry	Demsai Reang, Aparajita De, Ashesh Das, Parshant Dhanda	2018; Volume 41; Issue 4; Pages 319–328; DOI: 10.54207/bsmps1000-2018-y7w1ve
24	Water Resources of Barak Valley, India: Spatial Assessment of Lentic and Lotic System Using Remote Sensing and GIS at 5.8 m Resolution	International Journal of Advanced Remote Sensing and GIS	Demsai Reang, Aparajita De, Ashesh Kumar Das	2018; Volume 7; Issue 1; Pages 2633–2642; Cloud Publications; DOI: 10.23953/cloud.ijarsg.358
25	Spatial analysis on land use/land cover from IRS-R2 LISS4 FMX data-A case study in Assam University campus, India	NeBIO	Demsai Reang, Aparajita De, Ashesh Kumar Das	2018; Volume 9; Issue 1; Pages 134–143; Northeast Centre for Environmental Education and Research
26	Tree Diversity and the Improved Estimate of Carbon Storage for Traditional Agroforestry Systems in North East India	Applied Ecology and Environmental Sciences	Milon Das, Panna Chandra Nath, Demsai Reang, Arun Jyoti Nath, Ashesh Kumar Das	2020; Volume 8; Issue 4; Pages 154–159; Science and Education Publishing; DOI: 10.12691/aees-8-4-2
27	Traditional practice of Paan Jhum cultivation among Khasia community in Barak valley, Assam	Journal of Traditional and Folk Practices	Arun Jyoti Nath, Demsai Reang, Ashesh Kumar Das, Biplab Brahma, Milon Das	2016; Volume 4; Issue 1; Pages 96–99; DOI: 10.25173/jtfp.45
28	Roots of resilience: How indigenous knowledge can rewrite climate adaptation in the 21st century	Journal of Social Science and Research	Demsai Reang, Abigail Devian Rymbui, Ruoviseii Chiese, Kalepborlang Muksor, Pallabi Borah	2026; Volume 2; Issue 1; Pages 70–91; DOI: 10.3254/rgujssr.v2i1.118
29	King Cobra: Sighting of a Ophiophagus hannah (Cantor, 1836) in Assam University, Silchar Campus, Cachar, India	Zoo's Print	Sibam Sarkar, Priyanka Pachani, Mithra Dey, Demsai Reang	2018; Volume 33; Issue 11; Pages 9–11; Reptile Rap No. 188; Zoo Outreach Organisation

⊞ Research

Serial	Title	Description	Funding Organisation	Fund (Rs.)	Activation Date	Status	Submission Date
01	Preserving Indigenous Wisdom: A Study of Traditional Medicine and Healing Practices among the Riang Tribe of Tripura	This ICSSR-funded research project investigates the traditional medicinal knowledge, indigenous healing practices, and community-based healthcare systems of the Riang (Bru/Reang) tribal community of Tripura. The study focuses on documenting ethnomedicinal knowledge, examining the cultural and socio-ecological significance of traditional healing practices, and understanding challenges associated with knowledge transmission and preservation. It aims to contribute to the conservation of indigenous knowledge systems, culturally responsive healthcare approaches, and sustainable community development. Sanction Reference: F. No. 4/2025-26/ICSSR/RP/PVTG-2/GEN.	Indian Council of Social Science Research (ICSSR), Ministry of Education, Government of India, New Delhi	1800000	23/02/2026	Ongoing
02	Evaluating Urban Green Carbon Pools in Guwahati: A Blueprint for Mitigating Climate Risk and Urban Heat Island Intensity	This university-funded research project focuses on evaluating urban green-space carbon pools and their potential contributions to climate change mitigation and urban heat island reduction in Guwahati, Assam. The study aims to assess vegetation structure, ecosystem carbon storage, and the environmental significance of urban green infrastructure. By examining the relationships between urban vegetation, carbon sequestration potential, and climate-related environmental pressures, the project seeks to generate evidence supporting sustainable urban planning, green infrastructure management, and climate-resilient city development. Sanction Reference: RGU/Ch(Acad)/(07)/EVS.(41).	The Assam Royal Global University, Guwahati, Assam, India	150000	05/04/2024	Completed	03/02/2026
03	Assessing the Nexus of Microplastic Contamination in Agricultural Soils of Kharupetia-Dalgaon Belt, Assam: Implications for Achieving the UN SDG 3	This university-funded research project investigates microplastic contamination in agricultural soils across the Kharupetia–Dalgaon belt of Assam, with emphasis on its environmental significance and potential implications for human health and sustainable agriculture. The study aims to assess microplastic occurrence, abundance, and characteristics in cultivated soils and examine possible contamination sources and associated ecological concerns. The research seeks to strengthen the evidence base for agricultural soil pollution management, environmental health protection, and sustainable development, particularly in relation to United Nations Sustainable Development Goal 3 (Good Health and Well-being). Sanction Reference: RGU/Ch(Acad)/(07)/EVS.(40).	The Assam Royal Global University, Guwahati, Assam, India	150000	05/04/2024	Completed	03/02/2026

⊞ Paper Presentations

Serial	Paper Title	Seminar Title	Organised by	Author(s)	Date
01	Road dust microplastics in the castern Himalaya: implications for water security	National Seminar on "Role of the Himalaya in Achieving the Vision of Viksit Bharat 2047	Disaster Risk Reduction Club, Assam University, Silchar in collaboration in Connecting Himalaya	Pallabi Borah, Demsai Reang, & Naphibaniarlin Kshiar	24/07/2026 to 25/07/2026
02	Sustainability of Sericulture-Based livelihoods in the humid hill ecosystems of Meghalaya: An Entropy-Based Assessment	National Seminar on "Role of the Himalaya in Achieving the Vision of Viksit Bharat 2047	Disaster Risk Reduction Club, Assam University, Silchar in collaboration with Connecting Himalaya	Kalepborlang Muksor, Abigail Devian Rymbui, & Demsai Reang	24/07/2026 to 25/07/2026
03	Fish assemblage dynamics and their environmental correlates in the Amsku River, a hill stream of the Meghalaya Plateau, Northeast India	National Seminar on "Role of the Himalaya in Achieving the Vision of Viksit Bharat 2047	Disaster Risk Reduction Club, Assam University, Silchar in collaboration with connecting Himalaya	Abigail Devian Rymbui, Kalepborlang Muksor, Arvind Kumar Dwivedi, & Demsai Reang	24/07/2026 to 25/07/2026
04	Did we misunderstand our ancestral ways of sustainability? Ecological trade-offs in the transition from Jhum fallows to commercial plantations in the Eastern Himalayas	National Seminar on "Role of the Himalaya in Achieving the Vision of Viksit Bharat 2047	Disaster Risk Reduction Club, Assam University, Silchar in collaboration with Connecting Himalaya	Demsai Reang & Pallabi Borah	24/07/2026 to 25/07/2026
05	Rapid estimation of water quality in a natural reservoir under urbanization using WAWQI in Guwahati, India.	International Seminar on Climate Change: Impact and Resilience	Department of Zoology, Assam Don Bosco University, and Zoological Society of Assam	Demsai Reang, Anusuya Gogoi, & Pallabi Borah	27/02/2024
06	LULC modelling of a highly heterogenous landscape using remote sensing and hybrid-classification approach	National Seminar on Recent Trends in Ecological Research (RTER-209, as recorded in CV)	Department of Ecology and Environmental Science, Assam University, Silchar	Demsai Reang, Aparajita De, & Ashesh Kr. Das	05/03/2019 to 07/03/2019
07	Ethnozoological knowledge among the Dimasa community of Barak valley with special emphasis to magico-religious practices	National Seminar on Ethnobiology and Traditional Knowledge in Biodiversity Conservation: Approaches and Dimensions (ETKBC)	Department of Ecology and Environmental Science, Assam University, Silchar, in association with the Council of Scientific and Industrial Research (CSIR), New Delhi	Demsai Reang & Aparajita De	02/02/2017 to 03/02/2017
08	Landscape dynamics of Assam University campus at a decadal scale: Implications for sustainable land management	National Seminar on Charting and Managing Biodiversity: Perceptions and Priorities (CMBPP-2016)	Assam University, Silchar, in association with the University Grants Commission (UGC), New Delhi	Demsai Reang, Aparajita De, & Ashesh Kr. Das	08/03/2016 to 09/03/2016
09	Forest diversity and plant resources of Barak valley, Assam, Northeast India.	National Conference on Aspects and Prospects of Spermatophyte Taxonomy: Focus on Plant Resources of India	Bioinformatics Centre (DBT-BIF), Assam University, Silchar, in collaboration with East Himalayan Society for Spermatophyte Taxonomy, North Bengal University, Siliguri	Demsai Reang & Aparajita De	26/02/2015 to 27/02/2015

⊞ Book Chapters

Serial	Title	Publisher	Author(s)	Other Information
01	Implementing Sustainable Waste Management Solutions: Strategies in Action for a Greener Future	Springer Nature (Springer, Cham, Switzerland)	Sangeeta Biswas, Anurudha Chakraborty, Annu Kumari, Vishnu D. Rajput, Gudeta Weldesemayat Sileshi, Matthew Wilkinson, Demsai Reang	2026; In: The Circular Path: Rethinking Waste for a Sustainable Future; Editors: Moharana Choudhury, Sushobhan Majumdar and Mika Sillanpää; Pages 405–437; Print ISBN: 978-3-032-05301-5; eBook ISBN: 978-3-032-05302-2; DOI: 10.1007/978-3-032-05302-2_16
02	Building Climate Resilience Through Indigenous Aquaculture: Lessons from South Asia	Iterative International Publishers (IIP)	Abigail Devian Rymbui, Kalepborlang Muksor, Demsai Reang	2026; In: Integrating Indigenous Knowledge Systems (IKS) in Aquaculture: A Path to Sustainability; IIP Series, Volume 6; Chapter 7; Pages 69–81; ISBN: 978-93-7020-058-6; DOI: 10.58532/nbennurIKSA7
03	Forecasting the Future: Predictive Modeling for Water Resource Management	Elsevier	Demsai Reang, Suiven John Paul Tume, Parul Vats, Moharana Choudhury, Hari Mohn Rai	2025; In: Advances in Hydrology: Spatial Intelligence, Climate Change, and Sustainable Water Resource Management; Pages 95–122; Print ISBN: 978-0-443-26778-9; eBook ISBN: 978-0-443-26777-2; DOI: 10.1016/B978-0-443-26777-2.00006-5
04	Unveiling Nature’s Bacterial Solution to Radioactive Waste	Springer Nature (Springer, Singapore)	Birson Ingti, Anupama Moirangthem, Susmita Paul, Anuj Kumar Borah, Damsai Reang	2025; In: Environmental Sustainability and Biotechnology: Opportunities and Challenges; Editors: N. K. Arora, P. Pandey and J. Mishra; Microorganisms for Sustainability, Volume 46; Chapter 8; Pages 201–227; Print ISBN: 978-981-96-9024-4; eBook ISBN: 978-981-96-9025-1; DOI: 10.1007/978-981-96-9025-1_8
05	Carbon Stock Potential and Ecosystem Services Provisioned by Major Land-Use Systems in Southern Assam, India: A Meta-Analysis	Apple Academic Press / CRC Press, Taylor & Francis Group	Demsai Reang, Amitabha Nath, Arun Jyoti Nath, Ashesh Kumar Das	2024; In: Sustainable Management and Conservation of Environmental Resources in India; Editors: Sumit Chakravarty, Vineeta, Jahangeer A. Bhat, Munesh Kumar and Gopal Shukla; Chapter 3; Pages 47–64; Hardback ISBN: 978-1-77491-592-9
06	Ethnic Homestead Gardens: Diversity, Management and Conservation	Springer Nature (Springer, Singapore)	Demsai Reang, Arun Jyoti Nath, Gudeta Weldesemayat Sileshi, Ashesh Kumar Das	2023; In: Agroforestry for Sustainable Intensification of Agriculture in Asia and Africa; Editors: J. C. Dagar, S. R. Gupta and G. W. Sileshi; Sustainability Sciences in Asia and Africa; Chapter 12; Pages 363–386; Print ISBN: 978-981-19-4601-1; eBook ISBN: 978-981-19-4602-8; DOI: 10.1007/978-981-19-4602-8_12
07	Use of Plants and Animals for Ceremonies and Magico-Religious Purposes in Some Ethnic Villages of Cachar District, Assam	Assam University, Silchar, Assam, India	Demsai Reang, Aparajita De	2019; In: Recent Research in Ethnobiology and Biodiversity Conservation in India; Editors: A. K. Das, S. Gupta, A. Gupta and H. Singha; Published by Assam University, Silchar

⊞ Orientation/Refresher/Teachers' Training Programme participated

Serial	Title	Organised by	Duration
01	Orientation Programme: Faculty Induction Programme - 13	UNIVERSITY GRANTS COMMISSION HUMAN RESOURCE DEVELOPMENT CENTRE (HRDC), JNTUH	19/06/2023 to 21/07/2023
02	Short-term course on Remote Sensing & GIS applications in Forestry and Ecology	North Eastern Space Applications Centre (NESAC), ISRO, Government of India	04/12/2023 to 15/12/2023
03	Faculty Development Programme on AI for Teaching and Learning	Electronics and ICT Academies under the “Scheme of financial assistance for setting up of Electronics and ICT Academies” of the Ministry of Electronics and Information Technology (MeitY), Government of India.	18/08/2025 to 29/08/2025
04	International Short Duration course on Climate Change : Adaptation, Mitigation and Financing	GLOBAL FORUM FOR SUSTAINABLE RURAL DEVELOPMENT and the National Institute of Technology, Malang, Indonesia	18/07/2025 to 10/08/2025
05	Refresher course on Advance Science & Technology for a Sustainable Future (Interdisciplinary)	Malaviya Mission Teacher Training Centre (MMTTC), Indira Gandhi National Tribal University	18/07/2025 to 31/07/2025
06	Short-term course on Advanced Training on Environmental Impact Assessment (EIA)	Centre for Tropical Biodiversity Conservation	20/06/2025 to 02/07/2025
07	Faculty Development Programme on Research Awareness: Publication database and journal selection	Career Development Cell (CDC), Gokul Global University, Siddhpur, Gujarat	24/06/2024 to 30/06/2024
08	Faculty Development Programme on Innovative Teaching and Learning Pedagogy	Parul University, Gujarat, Research Foundation of India & RFI-Care	24/04/2023 to 28/04/2028
09	Faculty Development Programme on Exploring Dynamics of National Education Policy 2020 with Reference to NAAC Perspectives	Parul University, Gujarat, Research Foundation of India & RFI-Care	12/05/2023 to 18/05/2023
10	Faculty Development Programme on Exploring Use of AI Tools in Research	Bal-Bharati’s Maghanmal J. Pancholia College of Commerce, in collaboration with Nucleus of Learning and Development	30/12/2024 to 04/01/2025
11	Faculty Development Programme on Basics of Quantitative Analysis	Gokul University, Siddhpur, Gujarat, in collaboration with Nucleus of Learning and Development	20/01/2025 to 25/01/2025

⊞ Seminar/Workshop/Symposium attended

Serial	Title	Organised by	Duration
01	Training (online) on Advances in Monitoring and Modelling Hydro-Meteorological Hazards Using Geospatial Technology and Process-Based Models	Indian Space Research Organisation (ISRO), Department of Space, Government of India	05/12/2022 to 09/12/2022
02	Training (online) on Remote Sensing Applications in Agricultural Water Management	Indian Institute of Remote Sensing (IIRS), Department of Space, Government of India	03/08/2020 to 07/08/2020
03	Training on Bio-Optical Characterization of Water Resources: Implications for Future Satellite Missions	Indian Institute of Technology (IIT), Kharagpur, under the Global Initiative of Academic Networks (GIAN), Ministry of Human Resource Development, Government of India	25/06/2018 to 29/06/2018
04	Training on Basics of Plant Identification and Nomenclature	Eastern Regional Centre, Botanical Survey of India (BSI), Shillong, Government of India	07/11/2016 to 09/11/2016
05	Training on Introduction to Digital Image Processing & Pattern Recognition	National Remote Sensing Centre (NRSC), Indian Space Research Organisation (ISRO), Hyderabad, Government of India	03/08/2015 to 14/08/2015
06	National Seminar on Role of the Himalaya in Achieving the Vision of Viksit Bharat 2047	Disaster Risk Reduction Club, Assam University, Silchar, in collaboration with Connecting Himalaya	24/07/2026 to 24/07/2026
07	Online National Workshop on Practical Understanding of Biometric Analysis through R Programming	Sevak Ram Sahu College, Atal Bihari Vajpayee University, Bilaspur, in collaboration with Nucleus of Learning and Development	22/05/2025 to 28/05/2025
08	Webinar on Functional Traits of Bioindicators in Assessing Microhabitat Diversity and Ecological Resilience	7 Weaves Society, in collaboration with Bird Count India, Cotton University, Assam Don Bosco University, TISS, Deepor Beel Suraksha Mancha, Deepor Beel Panchpara Samabay Samiti, Assam Forest, and BonyaBondhu	05/01/2025 to 05/01/2025
09	8th Northeast Green Summit	Department of Environment, Forest and Climate Change, Government of Arunachal Pradesh, and VIBGYOR N.E. Foundation	10/03/2024 to 10/03/2024
10	International Seminar on Climate Change: Impact and Resilience	Department of Zoology, Assam Don Bosco University, and Zoological Society of Assam	27/02/2024 to 27/02/2024
11	Workshop on Research, Academic Writing and LaTeX	Department of Mathematics, The Assam Royal Global University, Guwahati	20/02/2023 to 20/02/2023
12	Webinar on Drone Remote Sensing in Agriculture	Indian Society of Agrophysics in association with Division of Agricultural Physics, ICAR–Indian Agricultural Research Institute, New Delhi	09/09/2020 to 09/09/2020
13	Webinar on Trends in Biomedicine and Life Sciences Publishing and Nuances & Tools of Scientific Publishing	Springer Nature in collaboration with DeLCON	02/09/2020 to 02/09/2020
14	International Webinar on Publishing in Academic Journals and How to Succeed with Your Publication	Taylor & Francis Group, India, and DeLCON	26/08/2020 to 26/08/2020
15	International Webinar on COVID-19 and Its Link with Biodiversity Conservation: Some Facts and Perspective	Department of Ecology and Environmental Science, Assam University, Silchar	14/08/2020 to 14/08/2020
16	International Webinar on Application of Geospatial and Molecular Tools in Natural Resource Conservation and Management	Department of Ecology and Environmental Science, Assam University, Silchar	29/07/2020 to 29/07/2020
17	Webinar on Managing the Earth from Space: Geospatial Technology	STLLES India, New Delhi, and EcoR Foundation, Kochi	15/07/2020 to 15/07/2020
18	National Seminar on Recent Trends in Ecological Research (RTER-209)	Department of Ecology and Environmental Science, Assam University, Silchar	05/03/2019 to 07/03/2019
19	Workshop on Introduction to R	Department of Ecology and Environmental Science, Assam University, Silchar	22/09/2018 to 24/09/2018
20	Regional Stakeholder Meeting and Workshop on Assam Biodiversity Portal	Ashoka Trust for Research in Ecology and the Environment (ATREE), in collaboration with Centre for Biodiversity and Natural Resource Conservation and Department of Ecology and Environmental Science, Assam University, Silchar	10/01/2018 to 10/01/2018
21	Science Academies' Lecture Workshop on Emerging Trends in Environment and Life Sciences: An Integrated Approach	Department of Ecology and Environmental Science, Assam University, Silchar; sponsored by Indian Academy of Sciences, Indian National Science Academy, and National Academy of Sciences, India	14/11/2017 to 16/11/2017
22	National Seminar on Ethnobiology and Traditional Knowledge in Biodiversity Conservation: Approaches and Dimensions (ETKBC)	Department of Ecology and Environmental Science, Assam University, Silchar, in association with Council of Scientific and Industrial Research (CSIR), New Delhi	02/02/2017 to 03/02/2017
23	National Seminar on Charting and Managing Biodiversity: Perceptions and Priorities (CMBPP-2016)	Assam University, Silchar, in association with University Grants Commission (UGC), New Delhi	08/03/2016 to 09/03/2016
24	Workshop on Dehydration of Flowers, Foliage and Floral Craft	Department of Life Science and Bioinformatics, Assam University, Silchar	16/02/2016 to 17/02/2016
25	Workshop on A Day with Tea	Department of Ecology and Environmental Science, Assam University, Silchar	10/02/2016 to 10/02/2016
26	Workshop and Hands-on Training Programme on Geospatial Techniques in Ecological Studies	Department of Ecology and Environmental Science, Assam University, Silchar	04/04/2015 to 04/04/2015
27	Workshop on Ecological Issues & Concern: Quantitative Applications	Indian Statistical Institute, Kolkata, and Department of Ecology and Environmental Science, Assam University, Silchar	23/03/2015 to 24/03/2015
28	National Conference on Aspects and Prospects of Spermatophyte Taxonomy: Focus on Plant Resources of India	Bioinformatics Centre (DBT-BIF), Assam University, Silchar, in collaboration with East Himalayan Society for Spermatophyte Taxonomy, North Bengal University, Siliguri	26/02/2015 to 27/02/2015

⊞ Membership in different Organizations

⊞ Scholarship/Award/Recognition of National/International status

⊞ Other Academic achievements

01	Editorial Board Member – Agroforestry Systems (Springer Nature; SCOPUS Q1): Serving as an Associate Editor of Agroforestry Systems, an international scientific journal published by Springer, Netherlands. The journal is indexed in Scopus and Web of Science (Science Citation Index Expanded, SCIE) and has a 2025 Journal Impact Factor of 3.2 (Clarivate Journal Citation Reports, released in 2026). Journal Impact Factor: 3.2 (2025 JIF) Indexing: Scopus; Web of Science Core Collection (SCIE) ISSN: 0167-4366 (Print) \| 1572-9680 (Online) Membership Category: International Journal Editorial Board – Associate Editor Official Verification: https://link.springer.com/journal/10457/editorial-board
02	External Expert Member – Board of Studies (BoS), Department of Eco-Restoration, Dimoria College (Autonomous), Khetri, Kamrup Metropolitan, Assam, for a tenure of three years. The appointment is made in accordance with Clause 12.5 of the UGC (Conferment of Autonomous Status Upon Colleges and Measures for Maintenance of Standards in Autonomous Colleges) Regulations, 2023. The role involves contributing to curriculum design, review and approval, strengthening academic standards in teaching and research, and providing expert recommendations on academic development and quality enhancement. Date of Appointment: 09 July 2025 Tenure: Three years from the date of appointment (09 July 2025 – 08 July 2028) Appointment Reference: DCK/P/2025/107.45
03	Life Member of the Indian Society of Remote Sensing (ISRS), a professional scientific society dedicated to advancing remote sensing, geospatial technologies, and their applications in natural resource management, environmental monitoring, and sustainable development. Membership Number: L-6176

01	International Scholarly Recognition (Rank 103) – Recognized among the World Top 1,000 Scholars in the Scholarly Index Top1000 Scholar 2026 rankings, securing World Rank #103 and a Top 2.7% statistical percentile, based on scholarly impact assessed over the 2021–2025 period. Certificate ID: SI-ECC0-AE34-2BB7 Verification Platform: https://scholarlyindex.com/
02	Best Researcher Award – Agro-ecology (2024) Featured in an online listing titled “Best Researcher Award – Agro-ecology” by Global Scholar Awards, dated 24 February 2024. The recognition is publicly documented on the organization's website Online Reference:https://globalscholarawards.com/demsai-reang-agro-ecology-best-researcher-award-23740/
03	Postdoctoral Research – DST SPLICE Programme, Government of India** Appointed as a Research Associate under the DST-SPLICE programme funded by the Department of Science and Technology (DST), Government of India, from 08 August 2020 to 29 September 2022, undertaking postdoctoral research in climate change vulnerability and restoration of degraded hill ecosystems. Reference: DST/CCP/MRDP/189/2019.
04	Junior Research Fellow (JRF) – DST AICP Research Programme, Government of India Appointed as a Junior Research Fellow under the DST-AICP research programme supported by the Department of Science and Technology (DST), Government of India, from 02 September 2017 to 15 March 2019, undertaking research activities in environmental and ecological sciences. Reference: AU/E/130/15-16.
05	Junior Research Fellow (JRF) – DST FASTTRACK Research Programme, Government of India Appointed as a Junior Research Fellow under the FASTTRACK research programme funded by the Department of Science and Technology (DST), Government of India, through the Science and Engineering Research Board (SERB), from 01 August 2012 to 01 August 2015. Reference: SERB/F/2489/2011-12.
06	Junior Research Fellow (JRF) – DST FASTTRACK Research Programme, Government of India Appointed as a Junior Research Fellow under the FASTTRACK research programme funded by the Department of Science and Technology (DST), Government of India, through the Science and Engineering Research Board (SERB), from 01 August 2012 to 01 August 2015. Reference: SERB/F/2489/2011-12.

01	Contributions to Biodiversity Conservation Initiatives: Received a Certificate of Appreciation for volunteering in stakeholder consultations conducted during the preparation of the Assam State Biodiversity Strategy and Action Plan (2016–2017), undertaken by the Wildlife Institute of India, Dehradun. This contribution reflects engagement in participatory biodiversity conservation and state-level environmental planning.
02	Appointed as an Associate Editor of Agroforestry Systems (Springer Nature SCOPUS Q1 Journal). Also actively involved in scholarly peer review for journals published by Elsevier, Springer Nature, Frontiers, MDPI, and PLOS, contributing to scientific quality assessment and research publication standards.
03	IPR (Intellectual Property and Research Copyright): Contributed to the registered research work “Assessment of Flood Disaster in Barak Valley: Implications for Management,” recorded under Copyright Registration No. L-143076/2024, dated 8 February 2024, by the Copyright Office, Government of India. The registration represents a formally documented intellectual property contribution associated with environmental assessment and disaster management research.
04	Invited as Resource person for a Training Programme on Net Ecosystem Production and Carbon Dynamics of Forest Ecosystems in North East India, Organised by: North-Eastern Hill University (NEHU), Shillong, Meghalaya; funded by Department of Science and Technology (DST), Government of India Date (From): 24/03/2021 Date (To): 28/03/2021
05	Invited as Resource person/Trainer foe a Training Session on Geospatial Technology and Interpretation of Topographic Maps, Organised by: Nabinchandra College, Badarpur, Assam Date (From): 20/03/2021 Date (To): 20/03/2021
06	Invited as Resource person/Trainer for a Workshop on Interdisciplinary Approach to Environmental Science, Organised by: Karimganj College, Assam; funded by Department of Biotechnology (DBT), Government of India Date (From): 15/11/2018 Date (To): 22/11/2018