The Aravalli Hills, often called the “lungs of North India,” have long served as a vital ecological barrier protecting the National Capital Region from desertification and dust storms. Stretching across Haryana, Rajasthan, Gujarat, and Delhi, this ancient mountain range—among the oldest in the world—plays a crucial role in recharging groundwater, stabilizing the climate, and supporting unique biodiversity. However, a recent proposal by the Haryana government to redefine the Aravalli hills based on new geological and elevation criteria has sparked controversy and concern among environmentalists, scientists, and citizens alike.
Under the proposed definition, only landforms rising more than 100 meters above the surrounding terrain and composed of ancient rock formations would qualify as part of the Aravalli range. The government argues that this move will bring scientific precision to the identification of Aravalli land and help streamline development permissions. Officials claim that many areas currently classified as “Aravalli” are actually low-lying scrublands or agricultural plots and that redefining boundaries will prevent unnecessary restrictions on construction and infrastructure projects.
While the intent may appear administrative, the implications are far-reaching. Environmental experts warn that such a narrow geological definition could strip legal protection from vast areas of ecologically sensitive land. Many of these regions, though not tall enough to meet the new height criterion, still perform vital environmental functions—acting as wildlife corridors, forest patches, and groundwater recharge zones. Losing protection for these areas could open them to real estate expansion, mining, and deforestation, undoing years of conservation efforts.
The Aravallis are already under immense stress. Illegal mining, rampant encroachments, and unregulated construction have fragmented the ecosystem, threatening wildlife and depleting water tables. Gurugram and Faridabad, two of Haryana’s fastest-growing cities, have witnessed large-scale conversion of Aravalli land into luxury housing, farmhouses, and industrial estates. Environmental activists argue that redefining what qualifies as “Aravalli” will only legitimize this destruction and weaken court-mandated protections that have existed since the Supreme Court’s landmark orders on forest conservation.
Moreover, the Aravalli range acts as a natural shield for Delhi and its neighboring cities. It prevents the Thar Desert’s expansion eastward and helps filter pollutants from the air. With air quality in Delhi-NCR already among the worst in the world, reducing the ecological footprint of the Aravallis could have dire consequences for regional climate and human health.
Critics are urging the Haryana government to consult independent environmental scientists, geologists, and ecologists before finalizing any redefinition. A more holistic approach—one that considers ecological function rather than just height or rock type—is essential. Protecting the Aravallis is not merely about drawing lines on a map; it’s about safeguarding a natural heritage that sustains millions of lives.
In an era of rapid urbanization and climate uncertainty, the Aravalli hills stand as a reminder of balance between progress and preservation. Any attempt to redefine them must strengthen their protection, not dilute it. For once lost, no law or definition can recreate the ecological lifeline that the Aravallis provide.
.jpg)
