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Department of Water Supply & Sewerage Management


The Department of Water Supply and Sewerage Management (DWSSM) under  Ministry of Water Supply , with responsibility of planning, implementation, operation, repair and maintenance of water supply and sanitation systems through out the country, is the lead implementing agency of the WASH sector where as the Ministry is the lead executing agency.

The Department is also engaged in finalizing a “15 year Development Plan of Nepal WASH Sector” aligning it with the Sustainable Development Goals (SDGs) as declared by the United Nation’s General Assembly for coming next 15 year period.


Historical Background


History of piped water supply system development in Nepal dates back to 1895 A.D., when the first BirDhara system (1891-1893) was commissioned in Kathmandu by then rana Prime Minister Bir Sumsher. The system also led to establishment of Pani Goshwara Adda (The office for water supply) and it provided limited private and community standpipes in few selected parts of Kathmandu. The water supply services were then gradually extended to few other prominent places like Amalekhgunj, Birgunj, Palpa and Jajarkot Khalanga where either the Rana rulers themselves or their family/relatives resided.

Tiresh Prasad Khatri

Tiresh Prasad Khatri

(Director General)


Phone: 01-4419670

Surya Raj Kadel

Surya Raj Kadel

(Deputy Director General)



Madhav Prasad Adhikari

Madhav Prasad Adhikari

(Deputy Director General)


Phone: 01-4417609

(Information Officer)


Phone: 01-4006651

DWSSM Projects

Latest News



Visit the website: http://nwash.mowss.gov.np/
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Latest Download / Notice / Press Release / Events

Date Title
March 19, 2021 Business Plan of Department of water supply and Sewerage management
March 19, 2021 Nirdeshika of Water Supply Users Committee
November 29, 2020 WaSH Plan
April 16, 2020 Guidance Note on Minimum WASH Requirements in COVID- 19 Quarantine and Isolation Centers*
April 16, 2020 कोरोना रोकथामको लागि बनेका क्वारेन्टाइन तथा आइसोलेसन सुविधाहरुमा WASH आपुर्ति सम्बन्धी निर्देशिका
September 17, 2019 Inner Khanepani Nepali Report 2076
Date Title
October 24, 2021 Notice of Extension of Deadline for Submission of RFP
October 24, 2021 RFP Amendment DPR-01-Impounding-077-78
September 30, 2021 RFP (DPR-02-IWSSMP-077-078)-Amendment
September 30, 2021 RFP (DPR-01-IWSSMP-077-078)-Amendment
September 30, 2021 RFP notice ( Extension)-Amendment-IWSSMP
September 29, 2021 RFP_DPR-01-Impounding-2077-078
Date Title