Tripura-born scientist Dr. Deb is contributing to global rice self-sufficiency efforts in Africa through irrigation planning, climate research and sustainable agriculture. His work with Kenya, IRRI and NASA-linked research initiatives highlights India’s role in addressing global food security challenges.
A scientist from Kailashahar in Tripura is contributing to international efforts to strengthen food security and promote sustainable agriculture, bringing recognition to the state through his research on irrigation, water management and climate resilience. Dr. Deb, a leading researcher in water and climate science, recently advocated a strategic roadmap for improving rice production and reducing dependence on imported rice in African countries at the Global Rice Policy Dialogue in Addis Ababa, Ethiopia.
The two-day international event brought together policymakers, agricultural researchers and development experts to discuss the challenges facing rice production, food security and sustainable farming across Africa. Organised with support from the African Union, the International Rice Research Institute (IRRI), AfricaRice and the Ethiopian Institute of Agricultural Research, the dialogue provided a platform for discussions on agricultural innovation, policy reforms and investment in irrigation infrastructure.
Addressing participants, Dr. Deb emphasised that Africa’s journey towards rice self-sufficiency should not rely solely on expanding the area under cultivation. Instead, he called for the identification of regions with high agricultural potential and targeted investment in modern irrigation systems that can support sustainable, long-term increases in production.
He highlighted the importance of scientifically managed irrigation, efficient water-use practices and region-specific agricultural planning. According to the approach he advocated, improved access to reliable irrigation could help increase rice yields, strengthen food security, improve farmers’ incomes and reduce the vulnerability of agricultural communities to climate-related challenges.
Dr. Deb’s proposals are also being developed through international collaboration. He is working with the Government of Kenya on a framework to identify regions where irrigation investments could deliver significant agricultural benefits. The initiative aims to guide investment decisions by assessing the potential of different regions while ensuring that water resources are managed responsibly.
The approach seeks to balance higher agricultural productivity with environmental sustainability. Effective irrigation planning can help policymakers direct limited resources towards areas where infrastructure improvements may produce meaningful benefits for farmers and national food systems.
Currently heading the Water and Climate Research Unit at IRRI’s South Asia Regional Centre in Varanasi, Dr. Deb has built his research career around improving agricultural productivity through better water management. His work spans irrigation engineering, climate adaptation and sustainable farming systems, connecting scientific findings with practical solutions for agricultural development.
His expertise is also being applied to large-scale water-management projects in India. In Kerala, he is associated with a World Bank-supported initiative that uses digital monitoring to track water flow across a canal-irrigation network covering more than 20,000 hectares.
The project aims to improve the distribution of irrigation water and provide better information for agricultural planning and management. Digital monitoring can help authorities understand how water moves through canal networks, identify distribution challenges and make more informed decisions about the use of available resources.
Beyond ground-based irrigation systems, Dr. Deb is involved in collaborative research with NASA scientists to validate information generated by the NASA-ISRO Synthetic Aperture Radar (NISAR) mission, a joint Earth-observation initiative of the National Aeronautics and Space Administration and the Indian Space Research Organisation.
The research seeks to integrate satellite observations with agricultural and water-resource studies. Such applications could support future improvements in irrigation planning, climate monitoring, crop management and the assessment of environmental conditions affecting farming.
Dr. Deb’s professional journey began in Kailashahar, a town in Tripura, before taking him to international academic and research institutions. After completing his doctoral studies at the University of Newcastle in Australia, he undertook advanced postdoctoral research at the University of Alabama in the United States.
His subsequent work in water and climate science has connected research institutions, government agencies and international development initiatives focused on agricultural productivity and sustainable resource management.
Rice remains an important staple food for millions of people, and dependence on imports can leave countries vulnerable to international market fluctuations, supply disruptions and changing prices. For African nations seeking greater domestic production, expanding irrigation access and improving water-use efficiency are among the approaches being considered to strengthen agricultural resilience.
However, achieving rice self-sufficiency also requires coordinated planning, suitable agricultural policies, investment in infrastructure and responsible management of land and water resources. Research-led strategies can help governments identify priorities and design interventions suited to local conditions.
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Dr. Deb’s contribution to the Global Rice Policy Dialogue highlights the growing role of scientific research in addressing interconnected challenges involving food production, water security and climate change. His work across Africa and India demonstrates how expertise developed through international research collaborations can inform practical agricultural initiatives.
For Tripura, his international engagement also draws attention to the scientific talent emerging from the state. From his beginnings in Kailashahar to his current work on irrigation, climate research and food security, Dr. Deb’s career illustrates how research rooted in scientific expertise can contribute to agricultural development and global efforts to build more resilient food systems.
