The Aravalli Mountain Range, also known as Arawali Parwat or Aravali Parvat, is one of the oldest geological features on Earth, representing a foundational pillar of India’s ecological identity. Formed approximately 2 billion years ago during the Proterozoic era, the Arawali mountain range in India traverses nearly 700 km (430 miles) from Gujarat, through Rajasthan and Haryana, before culminating in the national capital of Delhi.  

Today, Arawali Hills news has reached a fever pitch following a landmark Supreme Court judgement on Aravali Hills delivered on November 20, 2025. The court's acceptance of a new technical definition for the range has triggered what many experts now call the Arawali Hills controversy, warning that it may effectively sign a "death warrant" for one of the world's most ancient ecosystems.

Arawali Parwat Kaha Hai? | Location and Geography

the range serves as the ecological backbone of North-West India:

Gujarat: Where the range begins its northeasterly journey.

Rajasthan: Accounts for nearly 80% of the mountain system across 27 districts.

Haryana: Traverses southern districts like Mahendergarh, Nuh, and Gurugram. 

Delhi: Ends as the "Delhi Ridge," which acts as the capital's green lungs.

The highest peak, Guru Shikhar (1,727 meters) in Mount Abu, is well-known, but recent research emphasizes that the range's true strength lies in its continuity of low-lying hillocks and ridges.

Why the Aravalli Range Is North India’s Life-Line

The Aravallis provide invisible services that sustain millions of lives every day:

The Green Shield Against Desertification

The Aravallis act as a critical "green barrier" and "shield" against the eastward expansion of the Thar Desert. By blocking dust storms and hot winds, they prevent desertification from reaching the fertile Indo-Gangetic plains of Haryana and Uttar Pradesh.  

Groundwater Recharge Funnel

The weathered and fissured rock formations of the range act as a massive recharge zone, with a capacity estimated at 2 million liters per hectare. In districts like Mahendergarh, where groundwater has reached depths of 1,500 to 2,000 feet, the Aravallis are the only hope for water security.  

Air Quality and Pollution Sink

The range acts as a "natural net" that traps particulate matter (PM 2.5), which is essential for the air quality of the Delhi-NCR region. FSI–IITM observations show that when these ridges are breached, dust loads in Delhi–NCR can spike by 4 to 6 times.

The Controversial “100-Meter Rule”

The heart of the Arawali Hills controversy is the new definition adopted by the Supreme Court bench led by former Chief Justice B.R. Gavai.  

The Definition: A landform is now legally recognized as an "Aravalli Hill" only if it rises 100 meters or more above the "local relief" (measured from the lowest encircling contour line).

The Range: An "Aravalli Range" is defined as a collection of two or more such hills within 500 meters of each other.    

Why This Rule Is a "Death Sentence" for the Range

Environmentalists and former political leaders, including former Rajasthan CM Ashok Gehlot, have warned that this definition is "scientific reductionism" that ignores the geological reality of an ancient, eroded range.

91.3% of Hills Lose Protection

Internal mapping by the Forest Survey of India (FSI) reveals a staggering statistic: out of 12,081 hills mapped across the Aravalli landscape, only 1,048 (just 8.7%) meet the 100-meter height criterion. This means over 91% of the currently mapped hills could be legally "erased" from the protected list.  

Opening the Gates to the Mining Mafia

By excluding any landform below 100 meters from mining prohibitions, the ruling potentially opens up vast tracts for extraction. This is particularly dangerous in Rajasthan, where 90% of the hills are estimated to be between 30 and 80 meters high. 

Corporate Land Grabbing

The reclassification facilitates corporate encroachment. Investigative reports have already identified shell companies acquiring forestland for real estate; for example, entities like Patanjali reportedly hold over 123 acres in Mangar village through intermediaries.

Expert Warnings: A Vanishing Heritage

The Save Aravali news movement points to a 2018 report by the Central Empowered Committee (CEC), which found that 31 out of 128 sampled hills in Rajasthan's Alwar district had already completely vanished due to illegal mining.

Dr. Laxmi Kant Sharma, lead researcher at Central University of Rajasthan, warns that 8% of the hills have disappeared since 1975, and if current rates of urbanisation and mining continue, 22% will be gone by 2059.

Rajendra Singh, the "Waterman of India," has stated that if this decision is implemented, only a tiny fraction of the Aravalli will survive, leading to a "long-term water disaster" for the region. 

Digital Activism: RJ Kartik and the #SaveAravalli Movement

The controversy has sparked a massive digital backlash. Social media influencers like RJ Kartik have used their "Duniyadari" segments to translate this legal crisis for the public, framing the protection of the hills as a duty toward future generations.

The movement, supported by citizen collectives like "Aravalli Bachao" and "People for Aravallis," urges citizens to demand that the Supreme Court recall its November 20 judgment.

Environmental activist Dr. Himanshu Thakkar explains that the Aravallis must be understood as a living system, not hills measured only by height.

Padma Shri awardee Himmata Ram Bhambhu compares the hills to a protective wall:

“Every small Aravalli hill is like a brick in a safety wall. Remove a few bricks, and the entire structure fails.”

If the Aravallis are destroyed for short-term profit:

Future generations will inherit water scarcity
Forests and wildlife will disappear
Large parts of North India may become uninhabitable

This is why Save Aravali news and Aravali hills protest movements are growing across Rajasthan and North India.

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