SARNET is proud to have enthusiasts, activists and practitioners in rainwater harvesting water conservation from South Asia



Workshops, conferences and any other events related to rainwater harvesting, water conservation, online webinars, WASH etc

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Recent Research

Recent research on effectiveness of a RWHs for domestic non-potable use and the water demand of the community



Read and watch about Rainwater Harvesting Publication & Resources to identify existing rainwater harvesting practices


Welcome To South Asia Rainwater Network

The Regional Network aims

  • Functioning as a repository of information and experience on rainwater harvesting, networking with organizations/institutions, private sector, and individual experts in the South Asia Region.
  • Strengthening a regional rainwater network to coordinate the identification and evaluation for RWH technologies with the purpose of promoting best practices in rainwater management.
  • Supporting effective advocacy towards governments and donor agencies.

Upcoming Events

There are no upcoming events.

Residential technician training program on rainwater harvesting and storage: Construction of the Sri Lankan ferro cement Pumpkin tank and Calabash tank of Malawi

Duration – 12th to 16th May 2023

Venue – Bandarawela, Sri Lanka

Mode Of Training – Classroom and on the Job

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The Climate-resilient business model of Elpitiya Plantations a large tea production company in Sri Lanka featured in the SARNET 10th webinar receives a prestigious award from the Ceylon Chamber of Commerce

Managed by Aitken Spence Plantation Management PLC since 1997, Elpitiya Plantations owns 13 estates and 17 factories producing tea and other diversified crops. The Ceylon Chamber of Commerce ( the efforts of this organisation to reduce the environmental and water footprint of the ‘Go Green and Beyond’ initiative by awarding the prestigious Best Corporate Citizen Sustainability Award 2021.

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Votes for rainwater harvesting; an election candidate of Kathmandu in Nepal proposes rainwater harvesting as a measure to supply water to the communities not reached by the main supply

Mr. Balen Shah is a Rapper/Structural Engineer by Profession. He is a popular candidate for Mayor (Chair of Kathmandu Metropolitan City) in the local election. While giving an interview to a national televisions, a television channel he stated that even though the municipal water supply is fully functional there is an acute water problem in Kathmandu city. About 3% of the population will be still out of municipal water supply reach. This can be overcome or solved by applying Rainwater Harvesting Technology. Mr. Shah also spoke about recharging ponds to restore traditional water points/sources.  -Courtesy Kanchan Nepal for SARNET.

Linking South Asian communities with a solution to a common problem

Sri Lankan mason shows how to construct pumpkin-shaped rainwater harvesting tank to masons in water-scarce Begnas region in Nepal
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Pumpkin-shaped rainwater tank popular in Sri Lanka to be adopted for Nepal Blue Schools Project

Blue Schools project of Kanchan Nepal constructs the Pumpkin shaped rainwater harvesting tank. Masons of Nepal were trained on constructing pumpkin-shaped rainwater tanks by Malkanthi a Sri Lankan lady mason trained by the Lanka Rainwater Harvesting Forum and facilitated by Kanchan Nepal and supported by the International Rainwater Harvesting AllianceiIRHA).

Become a Young Rainwater Champion

Register now for the SARNET Young Rainwater Harvesting Champions (an initiative of the South Asia Rainwater Harvesting Network -SARNET)
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Recent Research

Recent research offers you an array of insightful information on the effectiveness of rainwater harvesting systems for domestic non-potable use and the water demand of the community, climate change and water conservation etc.

India maintains its rank among the top-performing countries

A report, published by German-watch along with Climate Action Network (CAN) and New Climate Institute, was released November 10 on […]

Do you want to record how much it rains where you live?

In modern record-keeping, rainfall is measured by the amount in a given time period, usually hourly or daily. A few […]

Citizens of Pune decided to use rainwater to address water scarcity and erratic supply by the municipal

Depleting groundwater levels, acute water scarcity and inadequate and erratic municipal supply made the residents of Baner Pashan link road […]

Irony of climate change discourses

The United Nations Framework Convention on Climate Change (UNFCCC) Conference of Parties 27’s (CoP 27) Egyptian presidency on September 29, […]

A glimpse of SARNET past events

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South Asian Rainwater Harvesting Network
South Asian Rainwater Harvesting Network
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Who is responsible for creating an enabling environment, for promoting wider acceptance of rainwater harvesting practices?

Many countries have policies in favor of rainwater harvesting but lack effective implementation. It is important to find out factors that have led to hesitance or lack of emphasis in the policy environment related to the acceptance and promotion of rainwater harvesting. Do you agree? Share your thoughts by joining as a presenter @ the SARNET 2nd international conference
South Asian Rainwater Harvesting Network
South Asian Rainwater Harvesting Network
Are you a passionate activist on water conservation or rainwater harvesting, a student seeking knowledge, or exploring opportunities to share your research findings on water availability and climate change? The 2nd international conference offers you an array of submission options to share your experiences. Register now #responses" target="_blank" rel="noreferrer">
South Asian Rainwater Harvesting Network
South Asian Rainwater Harvesting Network
11th webinar of SARNET - New systems and technologies on rainwater - YouTube #
South Asian Rainwater Harvesting Network
South Asian Rainwater Harvesting Network
Mark, your calendar to join the 11th webinar of the SARNET
South Asian Rainwater Harvesting Network
South Asian Rainwater Harvesting Network
Theme 1. of the 2nd SARNET # international conference # is........
Rainwater harvesting # is a means of achieving safe water # and sanitation # at the household level.

Lack of access to safe water and sanitation leads to health concerns and the expenses on health could cause a dent in the national economies.
Regions that cannot be provided pipe-borne water supply could access water needs by adopting roof water harvesting. This requires access to information and skill available on roof water harvesting technologies, and adequate investments.

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The state and private sectors can play a lead role in providing the necessary investment support for promoting rainwater harvesting. However, the involvement of these entities in coming forwards is the lack of evidence-based lobbying. Share thoughts@ SARNET conference AsiaSarnet photo
The 2nd international conference offers you an array of submissions to share your experiences. Local language submissions allowed for videos, posters, cartoons or infographics
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Register as a SARNET member on
to join Webinar 11 to find more on

A maintenance-free and cost-effective rooftop rainwater harvesting filter designed in India
A rainwater harvesting system designed for the advantage of coastal regions in Bangladesh
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Share your research and best practices to generate evidence for campaigns, investments, and policy changes necessary for the uptake of rainwater harvesting
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A theme of the 2nd SARNET international conference is :
Rainwater harvesting is a means of achieving safe water and sanitation at the household level.
To register
Safe water and sanitation and rainwater harvesting
"Water is basically the lifeline of cities and cities are like engines of growth. But due to conventional engineering paradigms for the past few decades, the urban water cycle is broken "- Dr. Suresh Kumar Rohilla, Programme Lead, IWA,UK on Baarish Sanvaad

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    South Asia Rainwater Network   We invite you to become a member of our network on RWH. Together we can certainly make a difference by supporting each other towards creating access to water for vulnerable population in the South Asian countries. Simply click the below link that you are interested in adding your organization to the network.   CLICK HERE TO REGISTER