Major Hill Ranges of India

What are the Himalaya’s three parallel ranges?

The Himadri, or Greater Himalayas, are the northernmost and highest range. They average around 6,000m, and hold the world’s tallest peaks. Kanchenjunga, at 8,586m, sits in the Himadri. It is India’s highest Himalayan peak, since Everest lies across the border in Nepal. The Himachal, or Lesser Himalayas, run south of the Himadri, at 3,700–4,500m — home to hill stations like Shimla and Mussoorie. The Shiwalik Hills form the outermost, lowest range, at just 900–1,200m. They are the youngest and southernmost part of the system.

Are Karakoram and Purvanchal part of the same system?

Not quite the same way. The Karakoram Range lies northwest of the Himalaya proper, extending into Ladakh, and is treated as a separate system. K2, at 8,611m, is its highest point — the world’s second-highest peak, and India’s highest peak overall. It lies in Gilgit-Baltistan, which Pakistan occupies illegally. The Siachen Glacier, in Ladakh’s part of the Karakoram, is the longest glacier outside the polar regions. Purvanchal, on the other hand, genuinely is the Himalaya continuing. Past the Dihang Gorge in Arunachal Pradesh, the range bends south into the Patkai, Naga, Manipur, and Mizo hills. It covers Arunachal Pradesh, Nagaland, Manipur, Mizoram, and Tripura.

Where do the Vindhya and Satpura ranges meet?

The Vindhya Range runs roughly east-west across central India, traditionally seen as the boundary between North India and the Deccan Peninsula. The Satpura Range runs parallel to it, further south, starting in eastern Gujarat and crossing Madhya Pradesh, Maharashtra, and Chhattisgarh. The two meet at Amarkantak, in Madhya Pradesh. The Maikal Hills form the connecting link between them — not the Sahyadri, a common exam trap.

What else makes Amarkantak worth remembering?

Amarkantak is the source of two rivers flowing in opposite directions. The Narmada flows west to the Arabian Sea. The Son flows east, to join the Ganga. One plateau, two rivers, two different seas.

How do the two Ghats differ?

The Western Ghats, or Sahyadri, run along the western edge of the Deccan Plateau, close to India’s own west coast, from Gujarat down to Kerala. The Eastern Ghats are a more discontinuous, more eroded range, running along India’s east coast from West Bengal through Odisha, Andhra Pradesh, and Tamil Nadu.

What actually links the two Ghats?

The Biligirirangan (BR) Hills, on the Karnataka-Tamil Nadu border, are the crucial link between the two Ghats. It is not the Satpura Range, which lies far to the north in central India. This link lets wildlife move between the two Ghat systems. The Seshachalam Hills, near Tirupati in Andhra Pradesh, are part of the Eastern Ghats. They are not the “southernmost part of the Western Ghats” — a common exam trap.

Where does the Aravalli Range fit in?

The Aravalli Range runs roughly 670km through Rajasthan, Haryana, Delhi, and Gujarat. It is one of the world’s oldest fold mountain systems, around 650 million years old. It is now heavily eroded into low hills — a different family from the young, still-rising Himalaya.

Where do the two Ghats physically meet?

The Nilgiri Hills sit exactly where the Western and Eastern Ghats meet, at the tri-junction of Tamil Nadu, Kerala, and Karnataka. Doddabetta, at 2,637m, is the highest peak in the Nilgiris, near the hill station of Ooty.

What about the Nallamala Hills?

The Nallamala Hills are an offshoot of the Eastern Ghats, spanning Andhra Pradesh and Telangana. They host the Nagarjunasagar-Srisailam Tiger Reserve, India’s largest tiger reserve by area.

Why is the Chota Nagpur Plateau called India’s mineral heartland?

The Chota Nagpur Plateau, ringed by low hills across Jharkhand and neighbouring states, is built from Precambrian rocks. These are among the oldest rock formations on Earth, rich in coal, iron ore, and mica. Its Damodar Valley holds major coalfields, including Jharia and Bokaro. Its Singhbhum iron ore deposits feed the steel towns of Jamshedpur (Tata Steel) and Bokaro (Bokaro Steel Plant).

What shaped the Deccan Plateau?

The Deccan Plateau is triangular, bounded by the Vindhya Range, the Western Ghats, and the Eastern Ghats. It sits on the Deccan Traps — thick layers of solidified lava. These erupted around 66 million years ago, near the boundary between the Cretaceous and Paleogene periods. That eruption was among the largest volcanic events in Earth’s history. Many scientists link it to the mass extinction that ended the age of dinosaurs. Weathered Deccan Trap basalt is also the source of regur, the black cotton soil that makes the plateau good cotton-growing land.

What role do these ranges play beyond geography trivia?

Together, the Vindhya and Satpura ranges are traditionally seen as dividing the Indo-Gangetic Plain of the north from the Deccan Plateau of the south. The Western Ghats force monsoon winds upward. This causes heavy rainfall on their western, seaward slopes, and a rain-shadow region on the Deccan Plateau to their east. Ranges like the BR Hills act as ecological corridors. They connect otherwise separated forest ecosystems, letting species like elephants and tigers move between the two Ghats.

Is age itself an exam angle?

Yes. The Western Ghats, formed from the break-up of Gondwana, are geologically older than the Himalaya, which is still actively rising today. UPSC has repeatedly tested whether candidates can match a hill range to the larger system it belongs to. Ranges that sound geographically close aren’t always actually connected. Most of the ranges above also host hill stations, British-era retreats built to escape the summer heat of the plains. Shimla and Mussoorie sit in the Lesser Himalayas, Ooty in the Nilgiris.