Indus Waters Treaty in abeyance, India rejects latest arbitration award as ‘null & void’

On 15 May 2026, the Court of Arbitration constituted under the Indus Waters Treaty issued an award related to the Kishanganga and Ratle hydroelectric project...

What Happened

On 15 May 2026, the Court of Arbitration constituted under the Indus Waters Treaty issued an award related to the Kishanganga and Ratle hydroelectric project disputes.
The Ministry of External Affairs immediately rejected the award, terming it "null and void" and the court itself as "illegally constituted."
India has consistently maintained that it never recognised the Court of Arbitration as validly formed, because the treaty's graded dispute resolution sequence was not followed by Pakistan.
The IWT has been in abeyance since April 2025, following cross-border terrorism; India asserts that all treaty mechanisms — including arbitration — remain suspended from its side.
Hydrological data-sharing and meetings of the Permanent Indus Commission have also been disrupted since the treaty was placed in abeyance.

Static Topic Bridges

Permanent Court of Arbitration (PCA) and Its Role in IWT

The Permanent Court of Arbitration, headquartered at The Hague, Netherlands, is an intergovernmental organisation established by the 1899 Convention for the Pacific Settlement of International Disputes. Despite its name, it is not a court in the traditional sense but an intergovernmental organisation that facilitates arbitration, mediation, and other dispute resolution proceedings between states, international organisations, and private parties. The Indus Waters Treaty's Court of Arbitration is constituted under Annexure G of the IWT, with the PCA providing institutional support and the Secretary-General of the PCA appointing neutral arbitrators when parties cannot agree.

PCA established: 1899 (Hague Convention); 1907 Hague Convention strengthened it
Headquarters: Peace Palace, The Hague, Netherlands
PCA's IWT role: provides institutional support; its Secretary-General appoints umpire arbitrators when parties disagree
India joined as a contracting party to the PCA
The IWT's Court of Arbitration is a seven-member body: one nominated by each party, five appointed through agreed procedure

Connection to this news: Pakistan approached the PCA to constitute a Court of Arbitration under Annexure G. India rejected this constitution on the grounds that the treaty's tiered process — requiring the Neutral Expert mechanism first for technical matters — was bypassed.

India's Position: Parallel Proceedings Are Impermissible

India's legal argument is rooted in the structure of Article IX: the Neutral Expert and Court of Arbitration processes cover overlapping subject matter and cannot run concurrently for the same dispute. When Pakistan triggered both mechanisms simultaneously (the Neutral Expert for Kishanganga and the Court of Arbitration for Ratle, or both processes for both projects), India argued this violated the treaty's architecture. The World Bank — a co-signatory — itself acknowledged the legal complexity and the risk of conflicting awards from parallel proceedings, and paused its involvement in both processes in 2017.

World Bank: acknowledged the risk of conflicting awards from parallel processes in 2017
India: participates in Neutral Expert process; refuses to participate in Court of Arbitration
Pakistan: contends both processes are permissible under the treaty
PCA tribunal (2023 award): asserted its own jurisdiction despite India's non-participation
India's consistent response to all PCA/CoA awards: null and void

Connection to this news: The 15 May 2026 award follows a pattern — the PCA-backed tribunal issues awards; India rejects them as null and void. The legal standoff has no near-term resolution given the treaty's abeyance status.

Permanent Indus Commission (PIC)

The Permanent Indus Commission is the joint bilateral body established under Article VIII of the Indus Waters Treaty. It consists of one commissioner from each country and meets at least once annually, alternating between India and Pakistan. It is responsible for: monitoring treaty implementation, resolving routine questions, exchanging hydrological data, and providing the first forum for dispute resolution. The PIC has been a rare continuity in India-Pakistan relations, having functioned through wars and diplomatic crises.

Established under: Article VIII of the IWT
Composition: one commissioner from India, one from Pakistan
Mandate: data exchange, implementation monitoring, first-tier dispute resolution
Frequency: at least one meeting per year
Status since April 2025: disrupted — India has halted hydrological data-sharing

Connection to this news: With the treaty in abeyance, the PIC's data-sharing and meeting functions are also suspended — reinforcing that India views the entire treaty architecture, not just specific projects, as frozen pending Pakistan's credible counterterrorism steps.

Key Facts & Data

IWT signed: 19 September 1960; negotiated with World Bank mediation
Court of Arbitration award in question: issued 15 May 2026
Court of Arbitration: seven-member tribunal under PCA (The Hague)
India's position: court is illegally constituted; all awards are null and void
Treaty in abeyance since: April 2025 (post-Pahalgam terror attack)
Kishanganga HEP: 330 MW (Jhelum tributary); Ratle HEP: 850 MW (Chenab)
World Bank: paused involvement in both parallel proceedings in 2017 citing risk of conflicting awards
India has not participated in any Court of Arbitration sessions for this dispute