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

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 …

CGIAR launches Scaling Hub South Asia in Nepal to boost water, agrifood security

IWMI and CGIAR launched the Scaling Hub South Asia to scale proven agriculture, water and energy solutions amid growing climate challenges …

Effective groundwater management in Jaffna depends on cross-sector collaboration

IWMI project brings together officials, researchers and communities to protect groundwater in Sri Lanka’s northern peninsula …

Women’s safety is a prerequisite for water security

Violence keeps women out of vital water decisions. For stronger water governance and genuine progress on equality, women’s safety must come first …

Latest South Asia publications

Thumbnail
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
Thumbnail
Report

Hydrological modelling for a resilient future: innovations at the water-climate nexus

International Water Management Institute; CGIAR Climate Action Program; CGIAR Policy Innovations Program; CGIAR Scaling for Impact Program; CGIAR Sustainable Animal and Aquatic Foods Program | December 5th, 2025
Sikka, Alok; Yadav, Shweta; Alam, Mohammad Faiz; Ghosh, Surajit; Bhatpuria, Dhyey; Padhee, Suman Kumar; Sahana, V.; Pandey, Shivam; Sena, Dipaka Ranjan
Open Access
Thumbnail
Report

Deploying solar pumps at scale in South Asia: opportunities for solarizing agriculture in South Asia

International Solar Alliance; International Water Management Institute | December 3rd, 2025
Verma, Shilp; Patel, Kalpana; Neupane, Nilhari; Shrestha, Shisher
Open Access