Drinking Water Providers in Nepal: KUKL, NWSC and WUSC Directory

Kathmandu Upatyaka Khanepani Limited (KUKL) is the answer to the most common question in this sector: it is the utility that supplies piped drinking water and operates the sewerage network across the Kathmandu Valley, covering Kathmandu, Lalitpur, Bhaktapur, Kirtipur, Madhyapur Thimi and surrounding municipalities. KUKL is a public company registered under Nepal's Companies Act, 2063 (2006) and run on a public–private partnership model. It took over Valley operations from the Nepal Water Supply Corporation on 1 Falgun 2064 BS (13 February 2008), when the Kathmandu Valley Water Supply Management Board granted it a 30-year licence and lease over the Valley's water assets.

KUKL is jointly owned rather than a pure government department. According to the company, the initial shareholding is held by the Government of Nepal (24 percent), the municipalities of the Valley (40 percent), organised private-sector bodies (12 percent) and a government-funded employee trust (5 percent), with a nine-member board of directors. Customers deal with KUKL through its branch offices, which handle new tap connections, billing, leakage complaints and tanker requests.

Supply remains far below demand. KUKL data from 2020 recorded about 221,600 registered connections, with the utility able to meet only around 22 percent of Valley demand in the dry season and 46 percent in the wet season, which is why most households receive water on rotational schedules of several days. The Melamchi Water Supply Project, designed to add 170 million litres per day (MLD) from the Melamchi river in Sindhupalchok, first delivered water to Kathmandu in March 2021 (Falgun 2077 BS); a catastrophic flood on 15 June 2021 buried its headworks, and the system has since operated seasonally, typically shut during the monsoon. Later phases envisage up to 510 MLD by also tapping the Yangri and Larke rivers.

The Kathmandu Valley Water Supply Management Board (KVWSMB) is an autonomous body constituted under the Water Supply Management Board Act, 2063 (2006). It owns all water supply and sewerage assets in the Valley, leases them to KUKL as operator, licenses service providers, monitors service quality and formulates local service policy. The 2006 reform deliberately unbundled roles that the Nepal Water Supply Corporation had previously combined: KVWSMB became asset owner and licenser, KUKL the operator, and a separate commission the tariff setter. KVWSMB also regulates groundwater extraction and licenses private water tanker operators within the Valley.

Tariffs are set by the Water Supply and Sanitation Service Tariff Fixation Commission (WSSSTFC), based in Tripureshwor, Kathmandu. The commission was first created as the Water Supply Tariff Fixation Commission under the Water Tariff Fixation Commission Act, 2063 (2006); that Act was repealed by the Water Supply and Sanitation Act, 2079 (2022), which re-established the commission under its Section 28. Any licensed provider — including KUKL and NWSC — must apply to the commission to revise the tariffs users pay, and consumers can lodge tariff-related complaints there. This separation is meant to protect consumers while keeping utilities financially viable.

The Nepal Water Supply Corporation (NWSC, Nepal Khanepani Sansthan) is the state-owned utility that supplies piped drinking water and sewerage services in designated towns outside the Kathmandu Valley. It operates in its present form under the Nepal Water Supply Corporation Act, 2046 (1989), with its head office at Tripureshwor, Kathmandu. The corporation's lineage runs from the old Pani Adda (Pani Goshwara) office, through the Water Supply and Sewerage Board created in 1973 (2029/30 BS) under the Development Board Act and the Water Supply and Sewerage Corporation of the mid-1980s, to today's NWSC. Until February 2008 it also ran the Kathmandu Valley system, which was then handed over to KVWSMB and KUKL.

For the frequent query 'Nepal Water Supply Corporation branches', the corporation's official branch directory (nwsc.gov.np, accessed 2026) lists 23 branch and project offices, concentrated in Tarai towns and a few hill locations. Each branch manages its own distribution network, connections and billing, so customers apply to the local branch rather than the Kathmandu head office.

Outside KUKL and NWSC territory — which means most of rural Nepal and many small towns — piped water is delivered by community-managed schemes run by Water User and Sanitation Committees (WUSCs), also called drinking water users associations. Sector studies estimate that roughly 40,000 water supply schemes of all types (gravity-flow, pumping, rural and semi-urban) are in operation nationwide, the great majority community-managed; the users' federation FEDWASUN, established in 2004, puts the number of drinking water users associations at around 41,250. A WUSC is elected by the scheme's consumers, commonly with nine members and at least one-third women, and is responsible for operating the system, collecting tariffs and funding repairs.

WUSCs are not only a village arrangement. Under the Asian Development Bank-supported Small Towns Water Supply and Sanitation Sector Projects, dozens of emerging towns have professionally staffed WUSC-managed utilities that borrow for construction and repay from tariffs. The Water Supply and Sanitation Act, 2079 (2022) formalises these bodies as 'users organisations': community organisations and water users groups registered before the Act had to be listed with their local level (rural municipality or municipality) within one year of its commencement, and new community providers obtain recognition and licences through the local government. This ties community schemes into the same legal framework as the big utilities.

At the apex of the sector sits the Ministry of Water Supply (MoWS), created in 2015 as the Ministry of Water Supply and Sanitation and renamed in 2018. Its principal technical arm is the Department of Water Supply and Sewerage Management (DWSSM), the lead implementing agency for the water, sanitation and hygiene (WASH) sector. DWSSM drafts national policies, norms and quality standards, and constructs and manages national, inter-provincial and other large water supply and sewerage systems, while day-to-day rural service delivery has devolved to provinces and local governments under federalism.

The umbrella law is the Water Supply and Sanitation Act, 2079 (2022), authenticated on 6 September 2022 and in force 31 days later. It guarantees access to clean and quality water supply and sanitation as a fundamental right, and requires any corporate body — users organisation, company, cooperative, board or corporation — to obtain a licence to survey, build or operate a water supply service system. Licensing authority is split across the three tiers of government: an officer designated by the Ministry of Water Supply for federal-level systems, provincial ministries for schemes spanning more than one local level, and local governments for basic local services. The Act also restates the responsibility split for projects: local levels handle basic water supply and sanitation, provinces handle multi-local-level projects, and the federal government handles projects spanning more than one province.

For exam aspirants, the institutional map after 2022 is therefore: MoWS (policy), DWSSM (implementation and standards), KVWSMB (Valley asset owner and licenser), WSSSTFC (tariff regulator), KUKL (Valley operator), NWSC (designated towns operator) and WUSCs (community operators), with provinces and local levels as licensing and delivery tiers in their own right.

The quickest way to identify who supplies your tap is by location. If you live in the Kathmandu Valley's municipal areas, your provider is almost certainly KUKL: apply for connections, report leaks or request tanker deliveries at the nearest of its branch offices. If you live in one of the 23 NWSC branch towns — from Biratnagar to Mahendranagar — the local NWSC branch handles connections and billing. Elsewhere, your ward office or municipality can direct you to the WUSC that operates your scheme, since all users organisations must now be listed with the local government.

For grievances beyond the utility itself, the escalation path depends on the issue. Tariff disputes and revision proposals go to the Water Supply and Sanitation Service Tariff Fixation Commission; licensing and asset questions in the Valley go to KVWSMB; and policy, standards or large-project matters sit with DWSSM and the Ministry of Water Supply. Private tanker and jar water suppliers fill supply gaps, especially in the Valley in the dry season, but they are supplementary vendors — in Kathmandu, tanker operators require KVWSMB licences — and are not a substitute for the licensed piped-water providers this directory covers.