South Asia

South Asia is home to over 1.8 billion people, many of whom depend heavily on agriculture for their livelihoods. The region is highly vulnerable to climate change, with increasing occurrences of extreme weather events, such as floods, droughts, and heatwaves, directly impacting food security, water resources, and livelihoods.

Approximately 70% of the region’s population relies on agriculture, which accounts for a significant portion of the economy, yet the sector is increasingly threatened by water scarcity, land degradation, and rising climate impacts. Transboundary water systems, such as the Ganges-Brahmaputra and Indus basins, are central to the region’s agricultural productivity, yet tensions around water rights and equitable distribution persist. With climate-induced shocks, South Asia faces a critical need for capacity building and sustainable water management to ensure food and water security in the coming decades.

IWMI in South Asia

IWMI is carrying out work to strengthen climate resilience and promote sustainable water management across the region. Through the South Asia Water Security Initiative (SAWASI) in Pakistan, IWMI is addressing critical water security challenges, while the Transboundary Rivers of South Asia (TROSA) project works to enhance river governance and resilience across multiple countries by focusing on rights, access, and environmental sustainability.

IWMI researchers also collaborate on improving climate adaptation strategies in agriculture, providing capacity building to enhance data-driven insights and strategic responses to agrifood system crises in Nepal. IWMI’s work supports smallholder farmers by promoting sustainable and inclusive irrigation development, which is key to increasing resilience against economic shocks and climate variability. By tackling transboundary water issues, strengthening water storage capacities, and fostering climate-smart agricultural practices, IWMI strives to build a more resilient, water-secure South Asia.

Projects in South Asia

Latest South Asia news

What the evidence says about solar irrigation and groundwater sustainability in Bangladesh

An IWMI study shows that solar irrigation expansion under fee-for-service model can happen without risk to groundwater sustainability …

CGIAR’s BRIGHT National Survey reveals dramatic rise in poverty and food insecurity in Sri Lanka  

The newly released national survey finds one in four households are experiencing multidimensional poverty, while one in three goes hungry …

How systems thinking can drive a more water-secure future for Pakistan

Through advanced hydro-economic models and citizen science, the Indus Basin is seeing effective policy changes across water, energy and food systems …

Nepal among CGIAR pilot countries to co-design Country Strategy Framework

IWMI is leading the development of Nepal’s CGIAR Country Strategy Framework, aiming to scale research for impact across agrifood, land and water system priorities …

Latest South Asia publications

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Journal Article

Exploring microbial diversity, antibiotic resistance, and their environmental drivers in urban and peri-urban riverbed sediments of sub-tropical river basins

January, 2026
Pandey, N. K.; Simon, M.; Vishwakarma, R. K.; Sen, S.; Joshi, H.; Yadav, Shweta; Mateo-Sagasta, Javier; Jampani, Mahesh; Sikka, Alok; Hazra, S.
Limited Access
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Report

National training workshop in Sri Lanka on Enhancing Paddy Mapping through Open-Source Geospatial Data and Technologies

International Water Management Institute; CGIAR Climate Action Program | December 24th, 2025
Alahacoon, Niranga; Jayamini, Kalpani; Amarnath, Giriraj
Open Access
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Report

National workshop on Drought Management: Knowledge Products and Tools for Sri Lanka

International Water Management Institute; CGIAR Climate Action Program | December 24th, 2025
Alahacoon, Niranga; Amarnath, Giriraj; Dickowita, Ranoja; de Silva, S.
Open Access