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Treaties & agreements · 1996

Mahakali Treaty (Pancheshwar)महाकाली सन्धि

DevelopmentImplementation stalled

The grand water bargain of 1996: equal entitlement to the Mahakali's waters, free Tanakpur energy for Nepal, and the ~6,480 MW Pancheshwar project — ratified near midnight by the largest treaty vote in Nepali history. Three decades on, the project's Detailed Project Report, due within six months, has still not been finalised.

Signed

1996

12 February 1996, New Delhi (initialled Kathmandu, 29 January 1996) · Magh 29, 2052 BS

Parties

2

Nepal · India

Ratified / in force

Ratified

20 September 1996 (Ashwin 4, 2053 BS) by two-thirds of a joint parliamentary session; in force 5 June 1997

Status

Implementation stalled

Signatories: Prime Minister Sher Bahadur Deuba (Nepal); Prime Minister P. V. Narasimha Rao (India).

The provisions

What the agreement says

The substantive terms, article by article where the structure allows.

  • Article 1 (Sarada Barrage) entitles Nepal to 28.35 m³/s (1,000 cusecs) of water in the wet season and 4.25 m³/s (150 cusecs) in the dry season, with India maintaining at least 10 m³/s downstream for the river ecosystem.

  • Article 2 (Tanakpur Barrage) records Nepal's consent to use of about 577 m / 2.9 ha of Nepali land at Jimuwa for the eastern afflux bund — with continued Nepali sovereignty — in exchange for wet- and dry-season water through head regulators India must build, plus 70 million kWh of energy annually, free of cost, continuously, delivered over a 132 kV line India builds to the border.

  • Article 3 (Pancheshwar) recognises the Mahakali as a boundary river on major stretches and gives both parties equal entitlement in the utilisation of its waters without prejudice to existing consumptive uses; power stations of equal capacity on each bank are to be operated in an integrated manner, total energy shared equally, and costs borne in proportion to benefits.

  • Article 9 requires a Mahakali River Commission guided by equality, mutual benefit and no harm, with equal representation — a body that has never been constituted.

  • Article 11 provides for binding arbitration by a three-member tribunal in which neither party nominates its own national, with the PCA Secretary-General appointing the chair failing agreement.

  • Article 12 makes the treaty valid for 75 years with review every 10 years; it supersedes the prior Sarada and Tanakpur understandings, including the 1920 Sarada letters of exchange.

  • Same-day letters of exchange required the Pancheshwar Detailed Project Report within six months of entry into force, a financing and implementation agreement within one year of the DPR, and project completion within eight years of that agreement — every one of these deadlines was missed.

The full story

How it came about — and what it means

The Mahakali Treaty was sold in 1996 as the grand bargain that would turn Nepal's water into wealth — ministers competed in promising billions in annual export revenue, with contemporary claims running from Rs 21 billion to Rs 120 billion. It bundled three things: legitimation of the 1920-era Sarada Barrage arrangement; settlement of the bitterly contested Tanakpur issue, where India had built the barrage's eastern afflux bund on Nepali land in the early 1990s and Nepal's Supreme Court had forced the question of parliamentary ratification; and the future mega-project at Pancheshwar — about 6,480 MW of capacity with energy shared equally, plus irrigation for roughly 130,000 ha in Nepal and 240,000 ha in India. The package logic — tying the Sarada of yesterday to the Tanakpur of today for the Pancheshwar of tomorrow — got it through parliament, but only after splitting the CPN-UML and only with side-assurances whose legal status evaporated on inspection.

Ratification, required for natural-resource treaties by Article 126 of the 1990 constitution, came near midnight on 20 September 1996 (Ashwin 4, 2053 BS): of 228 MPs present, 220 voted in favour and 8 against — 96.5%, the largest treaty vote in Nepali history — while 31 MPs, 26 of them CPN-UML, abstained. The vote rested on 'agreed points' with the opposition, popularly the four rashtriya sankalpas or national strictures: export-energy pricing on the avoided-cost principle, formation of the Mahakali River Commission, equal sharing of Mahakali waters after Pancheshwar, and determination of the river's status and source. The Parliament Secretariat later confirmed, in 2010, that no sankalpa prastav was ever officially registered or passed under House rules — only the record of 'sahamati ka bunda' (agreed points) exists — though an all-party Parliamentary Monitoring Joint Committee chaired by Speaker Ram Chandra Poudel held 28 meetings between November 1996 and August 2000. Instruments of ratification were exchanged on 5 June 1997, the treaty's entry into force.

The implementation failure is Nepal's textbook case of treaty-as-promissory-note. Every deadline in the letters of exchange — DPR in six months, implementation agreement in one year, project in eight years — was missed; the Mahakali River Commission required by Article 9 was never constituted, with a bureaucrat-led Pancheshwar Development Authority concept agreed in 2009 instead, in what Nepali critics call contravention of the ratification understandings. The sticking points are the same in 2025 as in 1997: each side's 'existing consumptive uses' (India's Sarada and lower-Sarada draw), how to count irrigation and flood-control benefits for cost-sharing (Nepal puts its share of such benefits around 5%, India proposed about 18%), and water-sharing formulas (a reported Nepali position of 50:50 against a reported Indian position of 75:25 in India's favour). A joint expert group has met repeatedly — its fifth meeting in Kathmandu in October 2023 — and in February 2025 the two energy ministers again agreed to 'expedite' DPR finalisation. Meanwhile the treaty's 10-year review windows of 2007 and 2017 passed unused.

Defenders note the treaty still delivers Nepal real goods — Tanakpur's free 70 GWh a year, dry-season water, the 10 m³/s supply for the Dodhara-Chandani enclave under Article 4 — and that its equal-entitlement language is Nepal's strongest legal card on the river. But the treaty file also keeps related grievances alive: Kalapani, since Nepal rejects India's identification of the Kali's source, which determines territory at Limpiyadhura and Lipulekh; the unreturned 36.68 acres of excess land at Brahmadev Mandi/Tanakpur, agreed for return as far back as 23 July 1946; and the Indian military presence at Kalapani since the 1960s. The dispute embedded in the river's definition exploded into the 2019–20 map crisis. The 75-year clock, running to 2072, keeps ticking either way.

What followed

Consequences & legacy

  • Nepal receives 70 million kWh of free Tanakpur energy annually, dry-season water at the Sarada and Tanakpur barrages, and irrigation supply for the Dodhara-Chandani enclave.

  • The Pancheshwar DPR, due within six months of June 1997, has still not been finalised almost three decades after signature; the ~6,480 MW project remains unbuilt.

  • The midnight ratification split the CPN-UML — the dissenting faction's abstention is a founding episode of Nepal's later party splits.

  • The treaty's definition of the Kali River keeps the Kalapani–Limpiyadhura–Lipulekh question alive; it fed directly into the 2019–20 map crisis.

The disputes

Controversies

  • The four 'rashtriya sankalpas' attached to ratification were never officially registered or passed under House rules — the Parliament Secretariat confirmed in 2010 that only the record of agreed points exists.

  • The Mahakali River Commission required by Article 9 was never constituted; Nepali critics call the bureaucrat-led Pancheshwar Development Authority concept a contravention of the ratification understandings.

  • Cost- and benefit-sharing remain contested: Nepal counts its share of irrigation and flood-control benefits at about 5% against an Indian proposal of about 18%, with reported water-sharing positions of 50:50 (Nepal) versus 75:25 (India).

Common questions

Mahakali Treaty (Pancheshwar): FAQ

When was the Mahakali Treaty (Pancheshwar) signed?+

The Mahakali Treaty (Pancheshwar) was signed on 12 February 1996, New Delhi (initialled Kathmandu, 29 January 1996). Ratification: 20 September 1996 (Ashwin 4, 2053 BS) by two-thirds of a joint parliamentary session; in force 5 June 1997.

Who were the parties to the Mahakali Treaty (Pancheshwar)?+

The parties were Nepal and India. It was signed by Prime Minister Sher Bahadur Deuba (Nepal); Prime Minister P. V. Narasimha Rao (India).

What did the Mahakali Treaty (Pancheshwar) establish?+

The grand water bargain of 1996: equal entitlement to the Mahakali's waters, free Tanakpur energy for Nepal, and the ~6,480 MW Pancheshwar project — ratified near midnight by the largest treaty vote in Nepali history. Three decades on, the project's Detailed Project Report, due within six months, has still not been finalised. A core provision: Article 1 (Sarada Barrage) entitles Nepal to 28.35 m³/s (1,000 cusecs) of water in the wet season and 4.25 m³/s (150 cusecs) in the dry season, with India maintaining at least 10 m³/s downstream for the river ecosystem.

Is the Mahakali Treaty (Pancheshwar) still in force today?+

The Mahakali Treaty (Pancheshwar) is classed as "Implementation stalled". The treaty's definition of the Kali River keeps the Kalapani–Limpiyadhura–Lipulekh question alive; it fed directly into the 2019–20 map crisis.