Dr. Himanshu[1]
Advocate Allahabad High Court
Email- hs8381@gmail.com
Orcid id -https://orcid.org/0009-0003-8009-8086,
Dr. Sudhanshu Chandra[2]
Assistant Professor Manuu Law School at Maulana Azad National Urdu University
(A Central University Grade A+) Hyderabad (Telangana) -500032
Email- sudhanshu.nlu@gmail.com
Orcid id – https://orcid.org/0009-0006-6694-1032
Saumyaa Pandey[3]
Research Scholar School of Legal Studies at Vivek University Bijnor Uttar pradesh Orcid id :0009-0008-6470-2358,
Saumyaapandey2001@gmail.com
Abstract
This research paper undertakes a comprehensive exploration of the dynamic interrelationship between international legal doctrines and the persistent water-related disputes within the Indian federal framework. In a nation where rivers are not merely natural resources but lifelines of culture, economy, and survival, conflicts over their use have become a recurring theme in inter-state relations. Among the most contested river systems in recent history stand the Krishna, Narmada, and Ravi-Beas basins, each of which has witnessed prolonged legal and political struggles for control and equitable sharing. Unlike several jurisdictions across the globe that continue to draw upon traditional doctrines such as the Doctrine of Riparian Rights, the American principle of Prior Appropriation, or the much-criticized Harmon Doctrine rooted in territorial sovereignty India has consciously moved away from these rigid, unilateral approaches. Instead, the country has consistently relied upon and judicially endorsed the principle of Equitable Apportionment. This doctrine, rooted in fairness and reasonableness, has not only gained legitimacy before prominent Indian tribunals but has also harmonized well with the evolving principles of international water law. Since the landmark adoption of the Helsinki Rules on the Uses of the Waters of International Rivers in 1966 by the International Law Association, the framework of equitable utilization and equitable apportionment has increasingly been invoked to address both national and trans boundary water-sharing challenges. These principles have offered India a pragmatic and adaptable legal foundation, enabling tribunals and courts to balance competing state interests while upholding broader considerations of sustainability and justice. Accordingly, the central aim of this paper is to critically examine the modalities through which international legal principles are interpreted, reshaped, and integrated into the Indian context. By focusing on the judicial treatment of inter-state river disputes, the study highlights how India has navigated complex hydro-political challenges by selectively aligning with global norms while simultaneously carving out its own jurisprudential path to water governance.”
Keywords: International Law, Water Disputes, Equitable Apportionment, Helsinki Rules, and Interstate Rivers.
Introduction
From the earliest chapters of human civilization, contention over natural resources most notably the waters of rivers has been an enduring feature of societal interaction, at times sparking intense rivalries among early communities. As humanity stepped into the twentieth century, the rapid surge in population, coupled with the expansion of industrial, agricultural, and other non-navigational uses of rivers, amplified the frequency and intensity of such disputes. In the present era, the equitable allocation and sustainable utilization of river waters has emerged as one of the most intricate challenges confronting the global community. This complexity is further compounded by mounting pressures from demographic expansion, the progressive depletion of freshwater reserves, escalating levels of pollution, and the contentious debates surrounding the construction of large-scale dams issues that are particularly acute within the developing world. Against this backdrop, the present chapter undertakes a comprehensive exploration of the legal dimensions governing both international and domestic water disputes, seeking to illuminate the frameworks through which these vital resources are shared, contested, and preserved.[1]
International Perspective related to Inter State Water Dispute
Scholars have advanced various theoretical frameworks on the equitable sharing of international water resources, often invoked by rival governments to support their respective claims. The resolution of such disputes necessitates a critical examination of these theories to ascertain their validity and legal soundness.”
Doctrine of riparian rights
Water indispensable to all forms of life remains a finite and precious resource, so much so that scholars and policymakers alike caution that the wars of the future may well be waged over its control.[2] The term “Riparian”, derived from the Latin word “Ripa” meaning the bank of a river or watercourse, refers to land adjoining rivers and streams.” By contrast, “Littoral”, from the Latin “litus” meaning shore, denotes ownership or rights along coastal areas. In practice, these expressions are often used interchangeably, encompassing legal entitlements relating to both inland waterways and maritime zones.[3]
Riparian rights trace their origins to Roman law and are recognized under the common law tradition, though they may be curtailed or modified by legislative enactments. They are grounded in customary practices and judicial precedents rather than codified statutes, and are acknowledged within the common law framework of the United States.[4] Historically, these rights in certain regions such as Texas were shaped by Spanish and Mexican legal influences, but have since been adapted in U.S. jurisprudence to allow broader applications unlinked to the nature of property ownership. The 19th century witnessed significant doctrinal refinement of riparian principles through the contributions of eminent jurists Joseph Story and James Kent, whose works helped embed the concept firmly within American legal thought.[5]
Riparian Rights
The doctrine of riparian rights encompasses a spectrum of entitlements traditionally afforded to those owning land adjoining natural watercourses. These include: (i) the right to use water, (ii) the construction of structures upon or near the water, (iii) fishing, (iv) navigation, (v) boating, (vi) swimming, (vii) domestic usage such as for drinking purposes, and (viii) protection of property from soil erosion (Norton, 2015).
In India, the statutory recognition of such rights traces its lineage to the Easements Act of 1882, itself rooted in earlier legal frameworks such as the Indian Act of the same year.
The Easements Act formalized riparian entitlements on the basis of two cardinal principles:
(a) rights acquired through long-standing, uninterrupted usage or prescription, and (b)rights shaped by local customs. However, these rights are neither absolute nor immune from regulation; they remain subject to the overarching authority of the state, which retains the power to control the collection, conservation, and distribution of waters flowing through natural channels.[6]
Judicial interpretation in India has shaped and, at times, redefined the contours of riparian rights. In Vippalapati v. Raja of Vizianagram (Madras High Court), the ruling underscored the inherent entitlement to unimpeded, free-flowing water, even where such flow was obstructed by dam construction. This case predating the celebrated M.C. Mehta v. Union of India (Ganga River Pollution Case) anticipated the need to safeguard riparian rights in the face of infrastructural interventions. The Krishna Water Disputes Tribunal famously observed that while riparian rights regulate private interests, they lack an adequate framework for resolving inter-state water conflicts a position later endorsed by the Godavari Water Disputes Tribunal in 1979. In M.C. Mehta v. Union of India, the Supreme Court reaffirmed the standing of riparian rights in the Indian context, recognizing the petitioner’s dual capacity as both a riparian owner and a guardian of the river’s dependents. The judgment emphasized the collective duty to address widespread pollution, noting the impracticality of placing the entire burden upon individual litigants. Similarly, the Narmada Water Disputes Tribunal clarified that Rajasthan, being a non-riparian state, could not claim water-sharing rights in disputes involving Madhya Pradesh, Maharashtra, and Gujarat.
Further judicial nuance emerged in Sethramanamalingam v. Anada Padyach, heard by the Madras High Court, where conflicts between upper and lower riparian owners were adjudicated. The court stressed that water quality in lower riparian zones must not be substantially degraded and that such rights apply primarily to natural rivers and streams, not to artificial or engineered water bodies. The Ravi–Beas Water Disputes Tribunal (1987) similarly rejected Punjab’s assertion that Haryana, as a non-riparian state, had no claim, thereby dismissing a rigid application of riparian principles in that context.[7] Despite their historical significance, riparian rights in India are not formally recognized as a governing principle for water allocation. Their indeterminate scope and lack of codified boundaries render them vulnerable to reinterpretation and limitation. They authorize access only for immediate, natural needs and do not sanction continuous diversion or usage beyond adjoining lands except under extreme scarcity. This restriction can stifle economic development by preventing the conveyance of water to non-riparian areas where it might yield greater utility.
The absence of definitive legal standards often precipitates costly and protracted litigation, with outcomes varying among jurisdictions and interpretations. Critics further contend that mere proximity to a watercourse does not confer automatic claims, and in modern practice, residents distant from rivers or streams enjoy equal entitlements under broader principles of equitable distribution. The doctrine’s inability to resolve inter-state or trans boundary disputes has led to its rejection in both national and international water law contexts. As observed by the Krishna and Godavari Water Disputes Tribunals, the riparian theory, while adequate for managing private rights, lacks the robustness required for comprehensive water governance. Its limitations both conceptual and practical have rendered it an insufficient foundation for addressing contemporary challenges in water rights allocation.[8]”
Prior Appropriation Theory
The Prior Appropriation doctrine is founded on the premise that water, when flowing in its natural course, constitutes a common resource accessible to all and incapable of private ownership by any authority. Under this principle, an individual acquires the right to use such waters only through their actual appropriation and application to a beneficial purpose. Priority of usage forms the cornerstone of the doctrine whereby the first user secures a superior claim, and those who follow may only utilize the surplus left unclaimed by the earlier appropriator. Though its conceptual roots can be traced to the Roman era, the doctrine found practical expression in the semi-arid and sub-tropical western states of the United States, where scarcity of water necessitated a clear hierarchy of usage. In the Indian context, however, this doctrine has not been accorded formal recognition. Its judicial rejection was notably illustrated in Belbhadar Perchand v. Sheikh Barkat Ali, adjudicated by the Calcutta High Court. The dispute concerned two adjoining private properties, wherein the upper riparian proprietor had erected a dam, thereby obstructing the petitioner’s water supply. The Court, siding with the upper riparian, upheld their entitlement to appropriate usage of the water, implicitly dismissing the rigid application of the Prior Appropriation principle. Over time, the relevance of this doctrine has waned, particularly as ownership and control over river waters in India have come to vest primarily in the state. What was once a principle ensuring regulated and beneficial use of water has been replaced by governance structures requiring formal authorization from competent state or regulatory bodies before such usage. In the United Kingdom, the approach evolved along different lines. The Water Resources Act of 1963 broadened the traditional scope of riparian rights by instituting a licensing framework in England, thereby introducing a statutory mechanism for the control and allocation of water resources.[9]”
Equitable apportionment Theory
In India, the regulation of co-riparian states’ rights over shared rivers was initially anchored in negotiated agreements rather than formal legislative enactments. Some of the earliest such settlements emerged in the late 19th century. Notable among them were the negotiations of 1873 and 1892, which sought to apportion the waters of the Jhelum and the Cauvery rivers. The Sirhind Canal Settlement concluded between the British administration and the princely states of Patiala, Jheend, and Nabha stands as one of the earliest attempts at institutionalized river-sharing. Likewise, an agreement was forged between the Madras Presidency and the princely state of Mysore over the Cauvery’s waters. Critics, however, argue that the colonial government’s role in such arrangements, particularly in the Cauvery dispute, bore elements of coercion rather than consensual negotiation.[10] The Sirhind Canal Arrangement, proposed originally by the Maharaja of Patiala, exemplified the principle of appropriation in allocating waters from an international river to enable agricultural expansion.
Later, in 1941, a committee chaired by Justice B.N. Rau was appointed by the Governor-General to deliberate upon the allocation of the Indus River system. This committee introduced a distinctive approach, proposing that states should be treated as unified entities, unencumbered by internal legislative or administrative divisions, when determining water distribution. Following independence and the traumatic partition of the subcontinent, India and Pakistan found themselves embroiled in one of the most significant water disputes of the 20th century. Despite numerous rounds of negotiations, the stalemate persisted until September 1960, when the World Bank mediated a breakthrough that culminated in the Indus Waters Treaty. Under its terms, the rivers were apportioned between the two nations: India received exclusive rights over the Eastern rivers Sutlej, Ravi, and Beas while Pakistan secured the Western rivers Chenab, Jhelum, and Indus. To offset Pakistan’s dependency on waters previously supplied by the Eastern rivers, India agreed to contribute £62 million towards the construction of irrigation infrastructure, including dams, in Pakistan. Within India, the principle of equitable distribution has long informed water-sharing arrangements, though its contours remain imprecise. The Krishna Water Disputes Tribunal, led by Justice R.S. Bachawat, acknowledged that the doctrine lacked a scientific formula and instead depended upon a multifaceted evaluation of factors such as groundwater reserves, climatic patterns, watershed characteristics, crop production levels, drainage basins, the degree of state reliance, availability of alternative water sources, and demographic considerations. The historical foundation of equitable sharing in India can be traced as far back as 1867, when irrigation schemes emphasized the principle of watering the maximum possible area at the lowest cost, regardless of political boundaries. Canal geography remained constant across changes in governance. Non-riparian states were also permitted to access river waters by contributing proportionally to irrigation costs. For instance, Patiala was allocated water from the Sirhind Canal despite the Sutlej not traversing its territory, while Bikaner benefited from the Sutlej Valley project although the river flowed primarily through British-administered land. Each state received a quantified allocation, with full discretion over its utilization.[11] Post-independence, expert committees further refined the discourse. In 1953, a panel chaired by Anderson submitted a report rooted in utilitarian philosophy inspired by Jeremy Bentham.
The report rejected rigid, permanent entitlements over river flows and instead recommended periodic reviews to adapt allocations in light of evolving water management options.[12] The doctrine of proportional allocation has since been applied in multiple contexts for instance, to apportion the waters of the Krishna among Madhya Pradesh, Rajasthan, and Gujarat, as well as to distribute resources between Uttar Pradesh and Bihar through the Musakhand Dam on the Kamansa River. The Krishna Tribunal (1973) reinforced this principle[13], and its reasoning was later echoed by the Narmada Tribunal in 1978, which highlighted fairness in distribution as a guiding principle (Tribunal, 1978). In 1979, the Godavari Water Disputes Tribunal expanded on this doctrine, affirming that inter-state claims must be settled on the basis of equitable allocation, with each state receiving a fair share of the river’s waters. Nevertheless, scholars and jurists have pointed out the inherent ambiguity of this principle. While it has been widely invoked in interstate water disputes, its lack of precise definition and scientific basis renders it difficult to apply with consistency[14]. Thus, equitable distribution remains a guiding yet elusive doctrine, simultaneously shaping and complicating the legal framework of India’s water governance.”
Territorial Sovereignty Theory
“The doctrine known as the Harmon Doctrine, attributed to U.S. Attorney General Judson Harmon, advances the proposition that a sovereign state exercises unfettered authority over all natural resources within its territorial boundaries, including international or trans boundary watercourses. This principle, rooted in the notion of absolute sovereignty, privileges the position of upper riparian states, granting them unrestricted liberty to exploit river waters flowing through their territories without any obligation to consider the consequences for lower riparian states. In essence, it elevates national autonomy above all collective or cooperative concerns, thereby legitimizing unilateral appropriation of shared water resources.[15]”
India, however, has consistently rejected this doctrine both in its international dealings and in the resolution of its inter-state river disputes. A striking example is the Indus Waters Treaty of 1960, brokered under the auspices of the World Bank. Despite India’s geographical advantage as the upper riparian of the Indus Basin, the treaty apportioned the waters in a manner that belies Harmon’s logic: Pakistan was allocated exclusive rights over the western rivers Indus, Jhelum, and Chenab while India received control over the eastern rivers Ravi, Beas, and Sutlej (Vasisth, 2012). This arrangement illustrates India’s deliberate departure from the doctrine of absolute sovereignty, demonstrating a preference for negotiated compromise over unilateral privilege.[16] At the international level, the Harmon Doctrine has never acquired the mantle of legitimacy. Far from being enshrined, it has been repudiated by international water law, most notably under the Helsinki Rules on the Uses of the Waters of International Rivers[17], which emphasize the principle of “equitable and reasonable utilization” over absolute control.[18]
The theoretical underpinnings of the doctrine have also been subjected to rigorous scholarly criticism. Professor Smith, in particular, condemned the theory of unrestrained territorial sovereignty, contending that it legitimizes reckless conduct by enabling states to cause irreparable harm to their neighbors without any accountability. He censured its lack of a differential principle and the absence of reciprocal duties, which, in his view, rendered it not only inequitable but also destabilizing in the international order.[19] In response to such criticisms, the doctrine of limited territorial sovereignty has emerged as the prevailing international approach. This principle, embedded in instruments such as the United Nations Convention on the Law of the Non-Navigational Uses of International Watercourses (1997)[20], acknowledges the sovereign rights of riparian states while simultaneously recognizing corresponding duties towards co-riparians. It promotes shared governance of transboundary watercourses by emphasizing equal rights, mutual respect, and reciprocal obligations. Unlike the rigid absolutism of the Harmon Doctrine, this framework balances sovereignty with responsibility, safeguarding both upper and lower riparian states and fostering cooperation over competition.[21]”
Community of Interest theory
The Community of Interest Theory envisions international river basins not as fragmented territories divided by political borders, but as unified economic and ecological entities. Under this doctrine, rivers and their resources are regarded as collective assets to be utilized in a spirit of partnership, where sovereign states and cultural groups alike participate in their management. The central objective is the systematic and cooperative use of shared waters, ensuring that benefits flow equitably to both upper and lower riparian regions in accordance with their developmental needs and priorities. This framework presumes that when river basins are approached holistically, infrastructural ventures ranging from dam construction to irrigation networks can be planned and executed in a manner that distributes both costs and advantages across riparian states. Such collaboration not only enhances efficiency but also fosters harmony among nations by aligning individual interests with collective well being[22] The theory finds practical validation in several international undertakings. The Indo-Nepal Kosi Project, for instance, reflects the spirit of cooperative water governance, wherein two sovereign states joined hands to regulate floods and harness river waters for mutual benefit. Comparable examples include the joint efforts of Turkey and the USSR in constructing a sea wall on the Arpa Chi Stream, the 1964 Columbia River Treaty between the United States and Canada, and the 1959 Nile Waters Agreement between Sudan and the United Arab Republic. Each of these cases underscores the principle that shared rivers, when managed collectively, become instruments of unity rather than contention.[23]”
Natural Water Flow Theory
“The Natural Channel Principle, more commonly referred to as the Territorial Integrity Theory, occupies a significant place in the discourse on both trans boundary and domestic water disputes. At its core, this doctrine upholds the notion that an upper riparian state is under an obligation not to obstruct or divert the natural flow of a river to the detriment of lower riparian territories. While the upper riparian nation may utilize the waters within its domain, such usage must be exercised with prudence and responsibility, ensuring that the downstream flow remains unaffected and uninterrupted.[24] This idea, which traces its roots to English jurisprudence on water rights within a unified legal system, eventually transcended national boundaries and entered the realm of international river law. A notable historical instance of its invocation was Egypt’s reliance on the principle in 1925 during its dispute with Sudan concerning the utilization of the Nile waters. The Nile Water Commission, however, rejected Egypt’s assertion of exclusive entitlement on the basis of its downstream location. Despite this, a treaty negotiated by Britain in 1929 granted Egypt a controversial veto power over Sudan’s prospective water usage. Legal scholars such as Berber criticized this arrangement as a political compromise rather than a genuine juridical settlement.[25] Furthermore, the doctrine has often been equated with the rigid idea of geographical rectitude, which, much like the Harmon Doctrine, is seen as excessively authoritarian in nature, severely curtailing the developmental aspirations of basin states. Modern scholarship, including the writings of Lipper, has found little support for the continued recognition of this principle within the framework of contemporary international law, emphasizing its impracticality in meeting the dynamic needs of water governance.[26]”
Equitable Utilisation Theory
The doctrine of Equitable Utilisation has emerged as one of the most universally acknowledged principles in the governance of trans boundary water resources, finding recognition across diverse legal systems and international forums. At its core, this theory affirms that every riparian state enjoys the right to a fair and reasonable portion of shared watercourses for beneficial use within its territorial domain. What makes this principle distinctive is its grounding in the ideals of procedural justice, emphasizing fairness, transparency, and respect for the legitimate rights and interests of all parties involved.[27] Closely connected to, yet distinct from, the doctrine of Equitable Apportionment, the principle of equitable utilisation rests upon the philosophy of justice and impartiality in resource distribution. While both share a commitment to fairness, they diverge in their method of application. The equitable utilisation approach is inherently cooperative, seeking resolution through dialogue, mutual agreement, or, where necessary, neutral adjudication by a third party.
In circumstances where negotiations alone cannot yield consensus, allocation is to be determined by an impartial arbitrator, ensuring that the needs and welfare of both the people and the states concerned are duly prioritized.[28] The doctrine also underscores the necessity of maximizing the effective use of water resources while balancing competing interests. It envisions allocation not merely as a legal entitlement but as a shared responsibility to utilize resources efficiently and sustainably. This vision found formal expression in the Helsinki Rules, promulgated by the International Law Association in August 1966, which laid down comprehensive guidelines for the division of international rivers. Notably, Article IV of the Rules enshrines the right of each riparian state within a common drainage basin to an equitable and reasonable share of waters for beneficial use within its territory, thereby institutionalizing the ideal of cooperative and balanced water governance.”
Article V
Article IV of the Helsinki Rules lays down the guiding framework for determining what constitutes a “reasonable and equitable share” of international watercourses. This determination is not rigid or absolute; rather, it is to be made in light of the unique circumstances of each case, with careful consideration of a wide range of relevant factors. The Rules emphasize that no single criterion can be conclusive, as fairness in allocation must emerge from a holistic assessment of all pertinent elements taken together.[29]”
Among the factors to be weighed are:
a. The geographical configuration of the basin state, particularly the extent of the drainage area falling within its territorial boundaries.
b. The hydrological characteristics of the basin, including the volume and contribution of water originating from each state.
c. Climatic conditions that directly influence the availability and flow of water in the basin.
d. The historical and present patterns of water use, with special reference to existing utilization.
e. The economic and social requirements of each riparian state, reflecting their developmental priorities.
f. The population within each state that depends upon the shared water resources for livelihood and sustenance.
g. The comparative feasibility and costs of alternative methods for meeting the economic and social needs of the basin states.
h. The accessibility and availability of alternative resources that could substitute or supplement the use of basin waters.
i. The imperative to avoid wastage and to ensure that water is used efficiently and sustainably.
j. The practicability of providing compensation to one or more co-basin states as a means of resolving conflicts arising from competing uses.
k. The extent to which the needs of one state can be met without inflicting substantial harm or injury upon other co-basin states.
Importantly, the Rules clarify that these factors are illustrative rather than exhaustive. The relative weight to be given to each factor depends on its significance in the context of other considerations, and thus varies from case to case. The principle envisions a balancing exercise, where all factors are to be considered collectively rather than in isolation, leading to a conclusion that represents fairness in its totality.
Yet, this very flexibility, while necessary, brings its own challenge. The factors are often broad and open-ended, making it difficult to achieve a uniform or predictable outcome in every dispute. They are best understood as guiding principles, designed to encourage cooperative negotiation and fair compromise, rather than as rigid rules capable of delivering a precise mathematical division of water resources.[30]”
Later- Helsinki Rules Development
The Helsinki Rules on the Uses of the Waters of International Rivers, adopted in 1966 by the International Law Association (ILA), have served as a foundational framework for shaping international water law and guiding subsequent resolutions and conventions. Their influence can be traced through a series of landmark resolutions and adaptations by various international legal bodies over the following decades.
1. In the aftermath of the Rules’ adoption, the International Law Association endorsed the “Resolution on Flood Control”, which specifically recognized in Article 8 that, in cases of disputes, the provisions embodied in Articles XXX to XXXVII of the Helsinki Rules should, as far as practicable, be applied. This marked one of the earliest affirmations of the Rules’ utility in addressing trans boundary water disputes.[31]
2. The Asian-African Legal Consultative Committee (AALCC) further cemented the Rules’ influence in 1973 when it adopted the “Law of International Rivers.” In Proposition II, Paragraph 2, the Committee borrowed directly from Article III of the Helsinki Rules in defining the concept of a “basin state.” Likewise, Proposition III, Paragraph 1, faithfully reproduced Article IV, which encapsulates the cardinal principle of equitable utilisation. Moreover, Propositions VI and VII drew inspiration from Articles VII and VIII of the Rules, emphasizing the protection of existing uses of water resources. Significantly, Proposition IX incorporated the essence of Article XI, mandating that states must refrain from acts causing pollution in violation of agreed standards and further imposing a duty to compensate co-basin states for any harm so inflicted.
3. Continuing this trajectory, the ILA, at its 57th Conference held in Madrid in 1976, adopted the “Resolution on the International Water Resources Administration.” Article 2 of this resolution reiterated that the definition of a basin state should remain consistent with Chapter VI of the Helsinki Rules. It also underscored once more the importance of the doctrine of equitable utilisation, as enshrined in Article IV, thereby reaffirming its status as the lodestar of transboundary water governance.[32]
4. At the 59th Conference in Belgrade in 1980, the ILA adopted two significant resolutions: the “Resolution on the Flow of Waters of International Water Sources” and the “Resolution on the Relationship between Water, Other Natural Resources, and the Environment.” Articles 7 and 8 of these instruments expressly extended the applicability of Chapter VI of the Helsinki Rules to disputes involving the regulation of water resources and their interrelationship with other natural resources and environmental concerns.[33]
5. At the 60th Conference in Montreal in 1982, the ILA turned its attention to environmental concerns, adopting new provisions relating to water pollution within international drainage basins, thereby expanding the scope of the Helsinki Rules to incorporate emerging ecological imperatives.
6. Finally, the 62nd Conference, convened at Seoul in 1986, witnessed the adoption of “Complementary Rules Applicable to International Water Resources.” These supplementary provisions built upon the foundation laid by the Helsinki Rules, refining and extending their application to meet the evolving challenges of trans boundary water governance.[34] In essence, the Helsinki Rules of 1966 became not merely a standalone instrument, but rather the cornerstone of an evolving body of international water law, continuously reaffirmed, reinterpreted, and supplemented across subsequent decades by international legal forums. Their repeated invocation across diverse resolutions highlights the enduring centrality of the principles of equitable utilisation, prevention of harm, and cooperation in the just and sustainable management of international watercourses.[35]”
Implementation of Helsinki Rules
In numerous real-world water disputes, both at the global and regional level, the principles enshrined within the Helsinki Rules of 1966 have been invoked and applied, often without being explicitly cited by name.[36] A notable example is the Narmada River conflict of 1978, where the doctrine of equitable apportionment was acknowledged by all contesting states Madhya Pradesh, Maharashtra, and Gujarat. The Narmada Water Disputes Tribunal, while adjudicating, drew heavily upon Articles IV and V of the Helsinki Rules, using them as guiding standards for fair allocation. Earlier, the Krishna Water Disputes Tribunal (1973) had similarly referred to Articles II, IV, and V of the Helsinki Rules as authoritative precedents for ensuring fairness in distribution.[37] Although often conflated due to their linguistic resemblance, the theory of equitable utilization and the theory of equitable apportionment differ significantly in origin, scope, and application. The doctrine of equitable utilization, grounded in the Helsinki Rules of 1966, finds its place in international river law and provides a structured and detailed framework. On the other hand, equitable apportionment emerged from the jurisprudence of U.S. interstate river disputes, where it functions more as a pragmatic principle of reasonableness rather than a codified legal doctrine, lacking the precision and authenticity of its counterpart. Equitable apportionment merely addresses the distribution of shares between disputing entities in general terms, leaving much to interpretation, whereas equitable utilization is firmly rooted in legal terminology and prescribes the entitlement of each riparian state to a fair and responsible portion of shared water resources for beneficial purposes. The vagueness inherent in apportionment means that determining what constitutes a “just share” is often left to case-by-case interpretation, whereas the Helsinki Rules provide concrete guidance. Notably, Part IV and Section (2) of Part V explicitly list relevant factors (a–k) that must be considered when deciding a state’s share, while still leaving room for additional factors where necessary.
This framework makes the equitable utilization principle not only resilient but also flexible, ensuring disputes can be resolved with greater clarity and efficiency. By contrast, the apportionment model requires deliberation over every individual factor in each new dispute, making it a slower and less systematic process. Moreover, apportionment focuses primarily on allocation, whereas utilization emphasizes improvement and effective use. In other words, apportionment divides resources without necessarily considering their use, while utilization ensures that every riparian nation enjoys a fair share explicitly directed towards beneficial purposes. Thus, the principle of equitable utilization is not only more practical but also promotes the optimal use of shared water resources across trans boundary river systems. In the Indian context, certain doctrines recognized elsewhere such as the doctrine of riparian rights, the American principle of prior appropriation, and the Harmon doctrine of absolute territorial sovereignty have been expressly rejected. Instead, India has embraced the doctrine of equitable apportionment, which has been consistently applied by major water disputes tribunals across the country. Since the codification of the Helsinki Rules in 1966, the equitable utilization principle has served as a cornerstone in resolving both domestic inter-state conflicts and international water disputes, providing a balanced mechanism that safeguards the interests of all riparian stakeholders.[38]”
Conclusion
The phenomenon of inter-state river disputes in India has, over time, necessitated recourse to certain principles drawn from international law, particularly those relating to riparian rights and the equitable sharing of trans boundary waters. Yet, not all doctrines that have shaped global discourse on water law have found acceptance within the Indian legal framework. For instance, the classical doctrine of riparian rights, though historically influential in Western jurisprudence, has been deemed inapplicable in the context of Indian inter-state water disputes. Similarly, the American doctrine of prior appropriation where rights are established by the principle of “first in time, first in right” has neither been recognized under Indian law nor gained legitimacy in broader international water governance.
Equally, the doctrine of absolute territorial sovereignty, famously articulated in the Harmon Doctrine, has never been embraced by India. This rigid notion of upstream states exercising unfettered control over shared watercourses, regardless of the downstream consequences, has been consistently rejected both in domestic adjudication and in international deliberations concerning India’s river systems. Instead, Indian tribunals and judicial bodies have consistently upheld the principle of equitable apportionment as the cornerstone of water dispute resolution. This principle, grounded in fairness and mutual benefit, ensures that river waters are shared in a manner that respects the rights and developmental needs of all concerned states. With the adoption of the Helsinki Rules in 1966, the doctrine of equitable utilization has not only gained global acceptance but has also reinforced its authority in India’s inter-state disputes. It may thus be asserted that both within the national and international arenas, the resolution of water conflicts has gravitated toward the ideal of equitable consumption, reflecting a balance between sovereignty, necessity, and fairness in the governance of shared rivers.”
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[4] Chauhan Babu Ram, Settlement of International and inter-state Water Disputes in India, water project series, Indian Law Institute, N.M.Tripathi Publication, New Delhi, 2015:23.
[5] Chauhan, Babu Ram Settlement of International and Inter-State Water Dispute in India: Water project series, Law Institute, N.M. Tripathi Publications, New Delhi, 1992:23
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[11] “Hussain Ijan Indus Water Treaty Political and Legal Dimensions, Oxford Press, Delhi, 2016:255.”
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[13] “Report of Ravi and Beas Water Tribunal, 1987:107- 109.”
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[15] “Report of Narmada Water Dispute Tribunal, 1978:(1):109.”
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[19] “Seervai HM, Constitutional Law of India, Tripathi Publications, 1988:34.”
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[1] Advocate Allahabad High Court Email- hs8381@gmail.com Orcid id –https://orcid.org/0009-0003-8009-8086,
[2] Assistant Professor Manuu Law School at Maulana Azad National Urdu University(A Central University Grade A+) Hyderabad (Telangana) -500032 Email- sudhanshu.nlu@gmail.com
Orcid id – https://orcid.org/0009-0006-6694-1032
[3] Research Scholar School of Legal Studies at Vivek University Bijnor Uttar pradesh Orcid id :0009-0008-6470-2358, Saumyaapandey2001@gmail.com
