Leak Detected In Taj Mahal’s Dome: Raises Alarms About Long-Standing Issues

Saturday, June 28, 2025, 17:07

A silent crisis is unfolding high above Agra. The Archaeological Survey of India (ASI), during a routine thermal scan, has detected water seepage in the Taj Mahal's iconic main dome-at a towering height of 73 metres. What looked like a minor issue soon revealed deeper structural concerns: deteriorating mortar, weakened sections of the dome's roof and floor, and corrosion in an embedded iron rod that supports the finial-the pointed tip of the dome.

Photo Credit: Pexels

Currently, scaffolding covers the dome as experts prepare for a 15-day physical inspection. Following this, conservation specialists will begin a meticulous repair process estimated to take around six months. All of this will unfold while the monument remains open to tourists.

The Structural Reality Beneath the Surface

These new findings came from an advanced Light Detection and Ranging (LiDAR) survey. According to ASI's Prince Vajpayee, Senior Conservation Assistant at the site, "the light detection tests are nearly complete," and now, a physical examination is underway to verify the extent of internal damage.

Among the most concerning observations:

The mortar that binds the marble stones is crumbling.
The roof and floor inside the dome show signs of structural weakening.
A rusting iron rod embedded in the finial has begun to expand, damaging nearby mortar.

These aren't just cosmetic issues, they affect the core structural stability of one of the world's most visited monuments.

Not The First Battle With Time

While the current dome leak has grabbed attention, this isn't the first time the Taj Mahal has needed urgent attention. Over the years, the monument has faced:

Pollution-Induced Discolouration

Yellowing marble caused by vehicle emissions and industrial activity led to intense public outcry in the 1980s and 1990s. This resulted in the creation of the Taj Trapezium Zone-a pollution-control buffer spanning 10,400 square kilometres.

Green Stains From River Insects

The polluted Yamuna River behind the Taj has long been a breeding ground for midges, tiny insects whose green droppings have stained the monument's rear façade, especially in the summers.

Mud Pack Treatments

To tackle surface discolouration, ASI has used Fuller's earth mud packs, a gentle technique to draw out grime without damaging the marble. These treatments were first trialled in the early 2000s and are now used regularly.

Foundation Worries

Experts have raised alarms over the monument's wooden foundations, which rely on moisture from the Yamuna. Falling water levels in the river have raised questions about the long-term health of the Taj's base. In 2010, early signs of tilting in minarets caused further concern.

Restoration In Progress, Visitors Unaffected

Despite the scale of the issue, ASI has assured that the restoration will not disrupt tourism. The leakage has been found where the main dome connects with other parts of the structure, which means public access to most of the complex will remain unaffected.

All current and upcoming work will be done using scaffolding and conservation-grade tools and techniques. No heavy machinery will touch the 17th-century architecture. This delicate balancing act between preservation and public access has become a defining challenge of heritage conservation in India.

Love That Stands The Test Of Time

The Taj Mahal has always been a monument to enduring love. But what keeps it standing today is an entirely different kind of devotion: the patience and persistence of historians, architects, engineers, environmentalists, and the silent commitment of those who understand that a nation's legacy needs more than admiration, it needs care.