Indus Water Treaty
25
Apr 2025

Introduction

The Indus Water Treaty (IWT) stands as a landmark agreement in the realm of international river water sharing. Signed in 1960, this treaty between India and Pakistan governs the use of the waters of the Indus River system. Despite decades of conflict and war, this treaty has remarkably withstood the test of time, making it one of the most successful water-sharing agreements in the world.

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What is the Indus Water Treaty of 1960?

The Indus Water Treaty 1960 is a bilateral agreement brokered by the World Bank between India and Pakistan. Signed on September 19, 1960, by then Indian Prime Minister Jawaharlal Nehru and Pakistani President Ayub Khan, the treaty allocates the usage of six rivers of the Indus Basin — the Indus, Jhelum, Chenab, Ravi, Beas, and Sutlej.

Key Provisions of the Indus Treaty 1960

  • Western Rivers (Indus, Jhelum, and Chenab): Allocated to Pakistan for unrestricted use.
  • Eastern Rivers (Ravi, Beas, and Sutlej): Allocated to India for exclusive use.
  • India can use Western Rivers for non-consumptive uses such as hydropower, irrigation, and transport, but cannot alter the natural flow significantly.

Why the Treaty Was Necessary

After the partition of India in 1947, the newly drawn boundaries left the headworks of the rivers in India, while the majority of the basin and irrigation system fell in Pakistan. This led to disputes and interruptions in water supply, prompting the need for a long-term resolution, resulting in the Sindhu Water Treaty of 1960.

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Historical Background of the Indus Treaty

The Sindhu Water Treaty, also referred to as the Indus Treaty, came into existence after both countries faced multiple disputes over water access and usage. The World Bank played a crucial role in mediating negotiations that spanned over eight years.

During this period, tensions ran high as water is a critical resource for both nations’ agriculture and livelihoods. Recognizing the need for a permanent solution, both parties agreed to divide the rivers to ensure mutual benefit and peaceful coexistence.

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Importance of the Indus Water Treaty

The Indus Water Treaty is considered one of the most resilient treaties globally. Here’s why it holds such significance:

  • Survived wars and political tensions: Despite the Indo-Pak wars of 1965, 1971, and the Kargil conflict of 1999, the treaty has remained functional.
  • Framework for cooperation: It created a mechanism through the Permanent Indus Commission (PIC), where representatives from both countries meet regularly to discuss technical issues and data sharing.
  • Economic importance: It secures water supply for agriculture, which is the backbone of both countries’ economies.

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Indus Treaty and Water Distribution Mechanism

Under the Indus Treaty 1960, water-sharing is clearly demarcated between the two nations:

Pakistan’s Share: Western Rivers

  • Indus River: Originates in Tibet, flows through Ladakh (India) into Pakistan.
  • Jhelum River: Originates in Jammu & Kashmir.
  • Chenab River: Originates in Himachal Pradesh, flows through J&K into Pakistan.

Pakistan receives about 80% of the total water flow under this treaty, making it heavily dependent on the Indus River system for irrigation and drinking water.

India’s Share: Eastern Rivers

  • Ravi River: Originates in Himachal Pradesh.
  • Beas River: Originates in Himachal Pradesh.
  • Sutlej River: Originates in Tibet, enters India in Himachal Pradesh.

India is allowed to use the waters from the Eastern Rivers for all purposes, including agriculture, domestic, and industrial use.

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Sindhu Water Treaty 1960: Dispute Resolution Mechanism

The Sindhu Water Treaty 1960 has a well-defined dispute resolution structure:

  1. Permanent Indus Commission (PIC): First level of dialogue and technical discussions.
  2. Neutral Expert: Appointed by the World Bank if the PIC fails to resolve.
  3. Court of Arbitration (CoA): For legal disputes where a neutral expert is not sufficient.

Challenges and Controversies Surrounding the Indus Treaty

Although the Indus Water Treaty has remained in place, it has not been without its controversies and challenges:

1. India’s Hydropower Projects

India has built several hydropower projects on the Western Rivers, such as:

  • Baglihar Dam on Chenab
  • Kishanganga Project on Jhelum

Pakistan has repeatedly raised concerns that these projects violate the treaty’s provisions, especially during dry seasons. However, neutral experts and international arbitrators have upheld most of India’s rights under the treaty.

2. Climate Change Impact

Glacial melt, reduced rainfall, and changing monsoon patterns threaten the river flows, impacting both countries. The treaty does not currently have provisions to address these emerging issues, which could lead to future disputes.

3. India’s Threats to Reconsider the Treaty

Following terrorist attacks attributed to Pakistan-based groups, Indian political leaders have occasionally suggested reconsidering or suspending the Indus Treaty as a form of diplomatic pressure. However, such moves are seen as risky since the treaty is internationally mediated and breaching it could have severe geopolitical consequences.

The Sindhu Water Treaty’s Global Recognition

The Sindhu Water Treaty 1960 is often cited in global forums as a model of conflict resolution. Many water-scarce nations dealing with cross-border rivers study the Indus Treaty to understand how structured negotiations can lead to long-term solutions.

Organizations like the United Nations, World Bank, and International Water Management Institute (IWMI) have recognized the treaty’s endurance and adaptability.

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Opportunities for Reform and Cooperation

Given the evolving environmental and political challenges, experts suggest that the Indus Water Treaty needs modernization:

  • Inclusion of climate change adaptation strategies.
  • Improved data sharing mechanisms using satellite and AI-based monitoring.
  • Joint watershed management to preserve river health.
  • Third-party arbitration protocols for faster dispute resolution.

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Joint Ventures for Sustainable Water Management

Instead of seeing the treaty as a zero-sum game, India and Pakistan can explore collaborative water management strategies:

  • Early flood warning systems
  • Drought management plans
  • Technology transfer in irrigation methods

Recent Developments: Suspension of the Indus Water Treaty

In a significant geopolitical move, India has suspended the Indus Water Treaty with Pakistan following a devastating terrorist attack in Pahalgam, Jammu and Kashmir, which claimed the lives of 26 civilians, including 25 Indian nationals and one from Nepal. The attack, attributed to the militant group Kashmir Resistance, has escalated tensions between the two nuclear-armed neighbours.

India’s Response

In the wake of the Pahalgam attack, India announced several measures:​

  • Suspension of the Indus Water Treaty: For the first time since its inception in 1960, India has suspended the treaty, signalling a significant shift in its diplomatic stance towards Pakistan.
  • Closure of the Attari Border: India has shut down the Attari border crossing, a major point of land transit between the two countries.
  • Visa Revocations: All visas issued to Pakistani nationals have been revoked, and Pakistani citizens in India have been asked to leave within 72 hours.

Pakistan’s Reaction

Pakistan has condemned India’s actions, labelling the suspension of the Indus Water Treaty as a “cowardly” and “inappropriate” move. The Pakistani government has also taken reciprocal measures, including:

  • Expulsion of Indian Diplomats: Several Indian diplomatic personnel have been expelled from Pakistan. ​
  • Suspension of Trade: Bilateral trade between the two nations has been halted. ​
  • Airspace Closure: Pakistan has closed its airspace to Indian aircraft.

International Concerns

The United Nations has expressed deep concern over the escalating tensions and has urged both countries to exercise maximum restraint to prevent further deterioration of the situation.

Conclusion: The Way Forward for the Indus Water Treaty

The Indus Water Treaty 1960 remains one of the few enduring symbols of cooperation between India and Pakistan. In a region often marred by political tensions, this agreement represents what is possible when diplomacy triumphs over discord.

Despite its flaws and challenges, the Sindhu Water Treaty has maintained peace over a shared and vital resource for over 60 years. Updating the treaty in the context of modern challenges like climate change, population growth, and technological advancements will ensure its relevance in the 21st century.

Both nations must recognize that water is not just a strategic resource but a shared lifeline, and use the Indus Treaty of 1960 as a platform to build a better future through cooperation, innovation, and mutual respect.

Frequently Asked Questions (FAQs)

Q1: What is the Indus Water Treaty?

Ans. The Indus Water Treaty is a water-sharing agreement signed in 1960 between India and Pakistan, allocating the rivers of the Indus Basin between the two countries.

Q2: Who signed the Indus Water Treaty of 1960?

Ans. It was signed by Indian Prime Minister Jawaharlal Nehru and Pakistani President Ayub Khan, with the World Bank as a mediator.

Q3: What rivers are covered under the Indus Treaty 1960?

Ans. The treaty includes the Indus, Jhelum, Chenab (for Pakistan) and Ravi, Beas, Sutlej (for India).

Q4: What is the Sindhu Water Treaty?

Ans. Sindhu is the Sanskrit name for Indus; hence, the Sindhu Water Treaty is another name for the Indus Water Treaty 1960.

Q5: Is the Indus Treaty still valid?

Ans. Yes, despite multiple challenges and wars, the treaty is still in effect and operational through the Permanent Indus Commission.

Q6: Why did India suspend the Indus Water Treaty?

Ans. India suspended the treaty in response to a terrorist attack in Pahalgam, Jammu and Kashmir, which resulted in the deaths of 26 civilians. The attack was attributed to a group believed to be backed by Pakistan, prompting India to take this unprecedented step.

Q7: Has the Indus Water Treaty ever been suspended before?

Ans. No, this is the first time since its signing in 1960 that the Indus Water Treaty has been suspended. The treaty has previously withstood multiple conflicts and tensions between the two nations.​

Q8: What are the implications of suspending the treaty?

Ans. Suspending the treaty could significantly impact Pakistan, which relies heavily on the Indus River system for agriculture and drinking water. It also raises concerns about regional stability and the potential for further escalation between the two countries.​

Q9: How has Pakistan responded to the suspension?

Ans. Pakistan has condemned the suspension, calling it a “cowardly” and “inappropriate” move. The country has also taken reciprocal actions, including expelling Indian diplomats, suspending trade, and closing its airspace to Indian flights.

Q10: What is the international community’s stance on this issue?

Ans. The United Nations has called for maximum restraint from both India and Pakistan to prevent further escalation. The international community is closely monitoring the situation, given the potential implications for regional and global stability.

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