The Engineer Who Builds Pakistan's Dams. India Will Not Let Him Finish.

On a Monday morning in March 2026, Rashid Mahmood stood at the base of the Diamer-Bhasha Dam site in Pakistan's Gilgit-Baltistan region, watching Chinese contractors pour concrete into the foundation of what would become the country's largest water reservoir. He had been standing there, in one form or another, for eleven years. The dam was supposed to be finished by 2028. Mahmood no longer believed that date.

Mahmood is the chief engineer for Pakistan's Water and Power Development Authority, the agency responsible for ensuring that 240 million people have enough water to irrigate crops that feed the country. His office in Islamabad keeps files on every major dam India has built or announced on the western rivers—the Indus, Jhelum, and Chenab—that the 1960 Indus Waters Treaty allocated to Pakistan. There are forty-three of them. Sixteen are operational. Twenty-seven are under construction or in advanced planning.

India says the projects comply with the treaty, which permits run-of-river hydroelectric facilities. Pakistan says the cumulative storage capacity violates both the letter and spirit of an agreement that has survived three wars. The World Bank, which brokered the original treaty and serves as its mediator, has been trying to resolve the dispute since 2016. In February 2026, it suspended mediation indefinitely.

The Treaty That Survived Three Wars

The Indus Waters Treaty was signed on September 19, 1960, in Karachi by Indian Prime Minister Jawaharlal Nehru, Pakistani President Ayub Khan, and World Bank President Eugene Black. It divided the six rivers of the Indus Basin: the three eastern rivers—Ravi, Beas, and Sutlej—went to India; the three western rivers—Indus, Jhelum, and Chenab—went to Pakistan. India retained the right to use the western rivers for limited irrigation, domestic consumption, and run-of-river hydroelectric generation, provided it did not significantly alter the flow or timing of water reaching Pakistan.

The treaty survived the 1965 war, the 1971 war that split Pakistan in two, and the 1999 Kargil conflict. It established a Permanent Indus Commission, which met annually to exchange data on river flows, planned projects, and disputes. Between 1960 and 2010, the commission resolved dozens of disagreements through technical discussions. Neither country invoked the treaty's formal dispute resolution mechanism.

That changed in 2010, when Pakistan formally objected to India's Kishanganga hydroelectric project on the Jhelum River. Pakistan argued that the design allowed India to divert water and reduce flow during critical agricultural seasons. India maintained that the project was a run-of-river facility with minimal storage, well within treaty provisions. In 2013, the Permanent Court of Arbitration in The Hague ruled mostly in India's favor but imposed restrictions on minimum flow rates.

By 2016, Pakistan had filed objections to seven additional projects, including the Pakal Dul and Ratle dams on the Chenab. This time, Pakistan requested a Court of Arbitration under the treaty. India insisted on a Neutral Expert, a less formal mechanism. The World Bank appointed both, triggering a procedural deadlock that paralyzed the dispute process for a decade. In February 2026, the Bank withdrew both appointments, citing irreconcilable positions.

The Engineer's Calculations

Mahmood keeps a spreadsheet that tracks water flow at Tarbela Dam, Pakistan's largest reservoir, which stores runoff from the Indus. The data shows that average annual inflow dropped from 82 million acre-feet in the 1990s to 74 million acre-feet between 2015 and 2024. Pakistan's agricultural sector, which employs 42 percent of the workforce and uses 90 percent of the country's freshwater, is designed around historical flow rates. A 10 percent reduction translates to crop failures in Punjab and Sindh provinces.

India disputes the numbers. Officials at the Central Water Commission in New Delhi say Pakistan's water crisis stems from domestic mismanagement—inefficient irrigation, lack of storage, and failure to build new reservoirs for fifty years. They point out that India shares data on river flows monthly and has never violated agreed release schedules. The real issue, they argue, is climate change: glaciers in the Himalayas are melting faster, altering the timing and volume of runoff.

The dispute is not purely hydrological. It is also nuclear. India and Pakistan have each assembled arsenals estimated at 170 and 170 warheads, respectively, according to the Federation of American Scientists' 2025 assessment. Both countries maintain doctrines that contemplate first use in the event of existential threat. In 2019, Indian officials floated the idea of abrogating the treaty in retaliation for a militant attack in Kashmir. The threat was never implemented, but Pakistani security analysts incorporated water stress into war-game scenarios.

The Province That Wants Out

Balochistan, Pakistan's largest province by area and poorest by income, sits at the intersection of the country's water crisis and its most enduring insurgency. The province holds an estimated 19 trillion cubic feet of natural gas and significant copper and gold deposits. It receives less than 4 percent of national water allocations. The Baloch nationalist insurgency, which has simmered since the 1970s, intensified after the announcement of the China-Pakistan Economic Corridor in 2015.

CPEC is a $62 billion infrastructure program linking China's Xinjiang region to Pakistan's Gwadar Port on the Arabian Sea. The centerpiece is a network of highways, railways, and pipelines crossing Balochistan. The provincial government says it was not consulted on land acquisitions or compensation. Nationalist groups say CPEC is resource extraction dressed up as development. The Pakistani military says the groups are funded by India's Research and Analysis Wing intelligence agency.

In August 2024, militants attacked a convoy of Chinese engineers near Gwadar, killing nine. In November, they blew up a section of pipeline carrying water from the Mirani Dam to the port. The attacks prompted China to suspend work on three CPEC projects and demand enhanced security. Pakistan deployed an additional 15,000 troops to Balochistan. Human rights organizations documented 1,847 enforced disappearances in the province between 2018 and 2024, most attributed to security forces.

The Militants Who Came Home

Pakistan's western border, a 1,640-mile line through mountains and desert, ceased to function as a border in August 2021 when the Taliban seized Kabul. The new Afghan government shelters Tehrik-i-Taliban Pakistan, an insurgent coalition that conducted a decade-long campaign against the Pakistani state before its leadership fled to Afghanistan in 2014. TTP has since regrouped, rearmed, and resumed attacks.

The Pakistan Institute for Peace Studies documented 789 TTP attacks in 2024, killing 1,206 people, including 412 security personnel. Most occurred in Khyber Pakhtunkhwa province, where the group maintains strongholds in districts bordering Afghanistan. In January 2025, TTP fighters overran a military post in North Waziristan, holding it for six hours before reinforcements arrived. The army does not publish casualty figures for individual engagements.

Pakistan has asked Afghanistan's Taliban government to expel or extradite TTP leaders. Kabul says it will not allow Afghan territory to be used for attacks on neighbors but will not hand over fighters who helped defeat the previous government. Pakistan has responded with airstrikes on suspected TTP camps in Khost and Paktika provinces. Afghanistan protests the violations of sovereignty. Neither country has diplomatic relations or a functioning border management system.

The Crisis No One Will Name

India and Pakistan have not fought a conventional war since 1999, but they have fought a border skirmish in Kargil, a standoff in 2001–2002 that brought both armies to mobilization, an artillery duel in 2019, and continuous exchanges of fire across the Line of Control in Kashmir that killed 147 soldiers and civilians in 2024 alone, according to data compiled by the South Asia Terrorism Portal.

Both countries possess short-range ballistic missiles capable of carrying nuclear warheads. India has an estimated 172 warheads; Pakistan 170. India's doctrine calls for massive retaliation in response to any nuclear use. Pakistan has developed tactical nuclear weapons and stated it would use them to halt an Indian conventional offensive. Neither country has signed the Treaty on the Non-Proliferation of Nuclear Weapons. Neither has ratified the Comprehensive Nuclear-Test-Ban Treaty.

In March 2026, the Arms Control Association published an analysis of escalation scenarios. It concluded that the most likely trigger for nuclear use was not a terror attack or border clash, but a protracted crisis over water or resources that eroded strategic stability over years. The analysis noted that India and Pakistan have no crisis hotline, no bilateral arms control agreements, and no mechanism for verifying each other's arsenals.

The Dam That Will Not Be Built

Rashid Mahmood's Diamer-Bhasha Dam was supposed to store 8.1 million acre-feet of water and generate 4,500 megawatts of electricity. Construction began in 2020 with $14 billion in funding, including loans from China and Saudi Arabia. The project is now three years behind schedule and $6 billion over budget. The primary contractor, China Power, suspended work in December 2025 after Pakistan failed to make a scheduled loan payment.

Pakistan's total external debt reached $126 billion in 2025, equivalent to 38 percent of GDP. The country has been in continuous negotiations with the International Monetary Fund since 2019, completing three emergency bailout programs. The most recent, approved in January 2026, required cuts to energy subsidies and a 12 percent devaluation of the rupee. Inflation reached 31 percent in February.

Mahmood says he does not expect work to resume before 2027. By then, he calculates, water inflow to Tarbela will have declined another 4 percent. The agricultural shortfall will force Pakistan to import wheat and rice, draining foreign reserves needed for debt payments. The government will have to choose between feeding the population and paying creditors.

What the Treaty Does Not Say

The Indus Waters Treaty does not address climate change, population growth, or what happens when the glaciers that feed the rivers melt faster than historical models predicted. It does not define how much water India may store in aggregate across dozens of facilities. It does not establish binding arbitration if both parties reject mediation. And it does not contemplate a scenario in which one country faces state failure while the other builds infrastructure that alters the flow of rivers the first country depends on to survive.

In February 2026, UN Secretary-General António Guterres offered to mediate. India declined. Pakistan accepted but said it would not negotiate without third-party arbitration. The World Bank declined to re-engage unless both countries agreed to abide by whatever mechanism it proposed. None of them did.

Mahmood keeps working. The foundation at Diamer-Bhasha is 62 percent complete. If funding resumes, the reservoir could begin filling by 2030. By then, according to his calculations, the Indus will carry 8 percent less water than it did when the treaty was signed. India will have completed sixteen more dams. And Pakistan will owe China $34 billion.

He does not talk about what happens if the dam is never finished. He just keeps pouring concrete.