Deep within the eastern Indian Ocean, bulldozers are beginning to reshape one of India's most remote and ecologically rich territories. Great Nicobar Island, a tropical paradise covered by ancient rainforests and home to one of the world's last largely uncontacted Indigenous communities, is at the centre of a massive development plan that promises economic growth, strategic security, and global connectivity.
Backed by Prime Minister Narendra Modi, the ₹1 lakh crore ($12.5 billion) Great Nicobar Island Project has been described as a development of "strategic, defence and national importance." Supporters see it as a transformative opportunity for India, while critics fear it could irreversibly damage fragile ecosystems and threaten Indigenous cultures that have survived for thousands of years.
As construction preparations move forward, the island has become the focus of an intense debate: Can development and conservation coexist, or will one come at the cost of the other?
Great Nicobar is the southernmost island of India's Andaman and Nicobar archipelago. Located just 40 nautical miles from the Strait of Malacca—one of the world's busiest shipping routes—it occupies a position of immense geopolitical significance.
Nearly 30 percent of global trade passes through the Strait of Malacca, including a substantial share of China's oil and gas imports. For India, strengthening its presence in this region is viewed as essential to securing maritime interests and maintaining influence in the Indo-Pacific. Prime Minister Modi has stated that the project will transform Great Nicobar into a major hub for maritime and air connectivity while enhancing India's defence capabilities.
Despite its strategic location, Great Nicobar remains one of India's least developed regions. Covering approximately 910 square kilometres, nearly 95 percent of the island is still covered by dense tropical forests.
The island is home to around 9,000 residents, including Indigenous communities such as the Nicobarese and the Shompen. The Shompen, believed to number around 300 people, are among the world's few remaining largely isolated tribes. Living as hunter-gatherers in the island's forests, they have had minimal contact with the outside world and are thought to have inhabited the region for thousands of years.
Great Nicobar is also a biodiversity hotspot. Its forests, mangroves, coral reefs, and lagoons support numerous endemic species found nowhere else on Earth. The island is particularly important as a nesting ground for the endangered leatherback turtle, the largest sea turtle species in the world.
The ambitious development plan is expected to unfold in phases and continue until 2047. Its key components include a major international transshipment port at Galathea Bay, a new international airport at Campbell Bay, expanded defence infrastructure, and extensive urban and tourism development, including residential areas, hotels, a gas-solar power plant, and a new township.
The centrepiece of the project is the proposed container transshipment port, which is expected to handle more than 20 million containers annually and compete with established regional hubs such as Singapore and Malaysia's Port Klang. The airport is intended to improve both civilian and military connectivity, while the expanded defence facilities are expected to strengthen India's strategic reach across the Indo-Pacific.
The island's population is projected to increase dramatically—from around 9,000 today to more than 336,000 by 2055. Tourism projections suggest annual visitor numbers could exceed one million by the same year.
While the project promises economic growth and strategic benefits, environmental groups warn that the ecological consequences could be severe. Government estimates suggest approximately 711,000 trees will be cleared, though some conservationists believe the actual number could be significantly higher.
Environmentalists argue that replacing ancient tropical forests with plantations elsewhere cannot compensate for the loss of ecosystems that have evolved over thousands of years. The government's proposal to offset deforestation through compensatory plantations in Haryana has attracted criticism because the mainland's dry landscape bears little resemblance to Great Nicobar's rainforest environment.
The leatherback turtle has become another focal point of concern. Scientists warn that construction around Galathea Bay could disrupt critical nesting beaches. Researchers note that leatherback turtles often return to the same nesting sites throughout their lives, meaning disturbances to these habitats could trigger long-term population declines.
Opposition leader Rahul Gandhi has also raised concerns about the project, arguing that it risks causing irreversible ecological damage and undermining Indigenous rights. He has questioned whether the government's development priorities adequately account for the island's unique environmental and cultural significance.
Perhaps the most sensitive issue surrounding the project is its potential impact on the Shompen people. Human rights advocates argue that increased construction activity, migration, and outside contact could expose the tribe to diseases against which they have little or no immunity.
Organisations such as Survival International have warned that large-scale development could fundamentally alter the forests, rivers, and natural resources on which the Shompen depend for survival. Critics also question whether meaningful consent can be obtained from a community that remains largely uncontacted and may have limited understanding of the project's scale and implications.
The controversy is not limited to environmentalists and Indigenous rights groups. Some settlers and local residents have also expressed concerns about land acquisition and compensation. Several families claim that land allocated to them decades ago is now being reclaimed for infrastructure projects without adequate alternatives or fair compensation.
These concerns have surfaced repeatedly in media reports and continue to fuel local opposition. For many residents, the issue is not simply development versus conservation, but whether the benefits of development will be shared fairly among those who have lived on the island for generations.
Supporters of the project argue that Great Nicobar offers India a once-in-a-generation opportunity. Strategic analysts often describe the island as an "unsinkable aircraft carrier" positioned at the gateway to one of the world's most important maritime corridors.
The project is closely linked to India's Act East policy, which seeks to strengthen economic and security ties across the Indo-Pacific. Many experts view the development as a response to China's expanding presence in the Indian Ocean through what is often described as the "String of Pearls" strategy—a network of ports and strategic facilities extending across the region.
From this perspective, Great Nicobar is not merely an island development project but a cornerstone of India's long-term geopolitical strategy.
Yet strategic arguments do not automatically resolve environmental and social concerns. While the project may strengthen India's position in the Indo-Pacific, it could also generate unease among neighbouring countries because of its expanding military and commercial footprint. Great Nicobar lies relatively close to Indonesia, Malaysia, and Thailand, although none of these countries has publicly expressed objections so far.
The project has ultimately become a symbol of a larger national debate about development, environmental protection, Indigenous rights, and national security. Supporters see it as essential for India's economic and strategic future. Critics view it as a risky experiment that could permanently alter one of the country's last great ecological frontiers.
The government maintains that the project has undergone the necessary environmental assessments and that adequate safeguards are in place to protect biodiversity and tribal communities. India's environmental court has also allowed construction to proceed, citing the island's strategic importance and finding insufficient grounds to halt the project.
The future of Great Nicobar will likely shape how India balances growth, national security, environmental stewardship, and Indigenous rights in the decades ahead.
For supporters, the project represents economic opportunity, strategic strength, and a gateway to India's Indo-Pacific ambitions. For critics, it raises urgent questions about the true cost of progress and whether some landscapes and cultures are too valuable to place at risk.
As bulldozers move into the forests and plans begin to take shape, Great Nicobar stands at a historic crossroads. The choices made today may determine the fate of one of the world's last great island wildernesses for generations to come.
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Mohd Ziyaullah Khan is a freelance content writer and editor based in Nagpur. He is also an activist and social entrepreneur, and co-founder of TruthScape, a group of digital activists working to counter disinformation on social media
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