The proceedings under the Indus Waters Treaty feel like more than just Pakistan-India water relations. It seems like also a kind of broader question for international law, can a state unilaterally, sort of cancel an agreed dispute resolution pathway simply by not showing up or refusing to take part in it?

The developments highlighted in the Permanent Court of Arbitration press release, dated 31 July 2026, point to the opposite idea. Despite India’s request to suspend the Neutral Expert proceedings and its subsequent withdrawal, the process has continued. The Neutral Expert declined to suspend the proceedings, maintained the Work Program and proceeded with independent technical work, including numerical modelling relating to the Ratle and Kishenganga projects.A final decision is expected around 16 July 2027.

The institutional message is important

Treaty based mechanisms are made to keep continuity there where politics can’t always do it. They pull legal duties and technical commitments away from the day-to-day swings in bilateral relations. Without these kinds of frameworks, any political crisis could easily stop the cooperation, and even a small disagreement might turn into a kind of diplomatic hostage situation.

The Indus Waters Treaty was structured to avoid precisely that outcome.Its dispute-resolution architecture provides designated mechanisms for examining disagreements relating to the interpretation and implementation of the Treaty. Once those mechanisms are activated, their authority does not logically depend entirely upon whether one party remains politically comfortable with the proceedings.Otherwise, the party facing an unfavourable or inconvenient process could simply disengage and thereby prevent any determination from being reached.

That would turn withdrawal into a procedural veto. The continuation of the Neutral Expert proceedings demonstrates why such a veto cannot be assumed. India’s withdrawal affects its participation but does not automatically dissolve the mandate of the mechanism. The Neutral Expert continues to examine the questions before him, and the proceedings retain a structured timetable.Pakistan has remained actively engaged throughout this process.It has participated in meetings, provided technical material and answered questions posed by the Neutral Expert. This approach strengthens the institutional character of Pakistan’s position because it relies on the mechanisms that the Treaty itself provides.

India, meanwhile, has repeatedly declined opportunities to participate or comment.The contrast is significant not because participation guarantees any particular legal outcome, but because the legitimacy of treaty mechanisms depends upon states using the procedures available to them. Where a state is offered procedural opportunities and consciously declines them, its absence cannot necessarily be transformed into a basis for stopping the process altogether.The substance of the dispute further illustrates why technical adjudication matters. Questions surrounding Ratle and Kishenganga involve complex engineering and hydrological issues. Sediment movement, reservoir operation, permissible pondage, flow patterns and project design cannot be resolved credibly through political statements alone.

Require Specialist Analysis

The initiation of independent numerical modelling therefore reinforces the technical character of the proceedings. Models allow experts to examine how different project configurations and operating conditions may affect water flows and reservoir behaviour. Such work does not depend upon political rhetoric. The purpose of independent expertise is precisely to ensure that the underlying questions can be evaluated through technical criteria.

This really matters because interstate water disputes can get political, like, fast. When rivers are tied to farming, power generation, everyday livelihoods and national security, even those “small” technical disagreements…they start to feel strategic. And then, you know, the whole thing gets charged, kind of beyond the engineering part.

Treaty institutions create a buffer against that politicisation. They provide a channel in which engineering questions remain engineering questions and legal obligations remain legal obligations. India’s decision not to participate cannot eliminate those questions. Nor can it automatically remove the Neutral Expert’s responsibility to examine them.

The revised procedural roadmap demonstrates that the process continues to possess institutional momentum. Written submissions, meetings, technical assessments and modelling remain part of an active sequence leading toward eventual determination. This continuity matters because international dispute-resolution mechanisms derive credibility from their ability to function despite political pressure.If the process were automatically halted whenever a party disengaged, treaty institutions would become fragile instruments dependent upon continuous political consent.That would weaken international law generally.The wider implications are therefore substantial.

Treaties are built upon the expectation of pacta sunt servanda agreements are to be observed. Their dispute-resolution mechanisms exist because states anticipate disagreement and create procedures in advance for dealing with it.It would be contradictory to argue that such mechanisms cease to operate precisely when disagreement becomes serious enough for one party to reject continued participation. Institutional commitments must possess some degree of resilience. Pakistan’s conduct illustrates one possible approach to such disputes: remain within the treaty framework, present evidence, respond to technical questions and allow the designated mechanism to perform its assigned function. That approach does not predetermine the final outcome. It does, however, reinforce the authority of institutional procedure over unilateral political action.

India’s withdrawal creates a different impression. It risks suggesting that international obligations are acceptable only while their institutional consequences remain politically convenient. Such a perception has implications beyond the Indus Waters Treaty because the international system relies heavily upon states accepting legal processes even when they disagree with them.The real question, therefore, is not whether India can choose to participate. A sovereign state can decide whether to attend particular proceedings.The deeper question is whether that choice automatically extinguishes a mechanism created under an international treaty. The continuing Neutral Expert proceedings indicate that the answer is no. India can withhold submissions, decline meetings and disengage politically. What it cannot necessarily do is convert that disengagement into termination of the process itself.

The distinction is essential

Treaty mechanisms exist to prevent one party from exercising unilateral control over disputes involving both parties. The Indus Waters Treaty now provides a real-world demonstration of that principle.Its legal process continues because its institutional authority does not rest solely on moment-to-moment political participation. That resilience may prove increasingly important as the proceedings move toward their expected conclusion in July 2027.