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

A One Health approach to fight waterborne antimicrobial resistance in India

With projections of up to 1.4 million deaths related to antimicrobial resistance a year by 2030, India needs to take immediate and intensified action …

Sri Lanka responds to Cyclone Ditwah

IWMI is supporting national authorities with flooding forecasts, rainfall monitoring, data processing and impact assessments …

Cyclone Ditwah’s impact on Sri Lanka

IWMI’s Giriraj Amarnath talked to Lewis Vaughan Jones live on BBC News show The Context on November 28, 2025, about the situation in Sri Lanka after Cyclone Ditwah caused widespread …

Pakistan Water Week 2025 builds consensus on making water security a national priority

Experts warn that fragmented approaches to water, food and climate are failing and call for integrated solutions to achieve national resilience …

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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Journal Article

Environmental and social considerations in hydropower development in the South Asian Himalayas: a NEXUS perspective

Springer | December, 2025
Bhandari, R.; Neupane, N.; Shrestha, Shisher; Chauhan, D.; Pokharel, D.; Xue, W.
Limited Access
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Journal Article

Nexus governance in practice: a stakeholder-driven framework for groundwater sustainability in Barahathawa Municipality, Madhesh Province

Springer | December, 2025
KC, S.; KC, Sumitra; Pokhrel, A.; Paudel, S.; Mishra, Anuj; Buchy, Marlene; Khadka, Manohara; Aryal, Anil
Limited Access