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CDS Geography · Indian Geography — Physical Features

Mountains, Plateaus and Plains

The Himalayan ranges and passes, the hills and plateaus of the peninsula, the belts of the northern plains, the Thar desert and the two coasts.

Why this matters

Sixteen CDS questions from 2017 to 2026, and the hardest page of the chapter: 7 HARD, 8 MODERATE, 1 EASY. Most are match-the-list or north-to-south items, so a table in your head is the whole skill.

Concept 1 of 4: Ranges of the north, peaks and glaciers

North of the plains, the mountains stand in rows like steps. Beyond the Great Himalaya lie the Trans-Himalayan ranges of Ladakh, and beyond those the Karakoram and the Kunlun. Learn the rows from north to south and every ordering question is a look-up.

Definition

From north to south:

  • Kunlun, then Karakoram, then the Ladakh range, then the Zaskar range (the Trans-Himalaya).
  • Then the Great Himalaya (Himadri), the Lesser Himalaya (with the Pir Panjal), and the Shiwaliks at the edge of the plains.

In Kashmir:

  • The Karewas are thick lake deposits of glacial clay with moraines, laid down in the Pleistocene on the lower slopes of the Pir Panjal. They grow saffron, almond and walnut.
  • The Jhelum meanders across the flat floor of the Kashmir valley.
  • Pangong Tso and Tso Moriri in Ladakh are salt-water lakes.
Range or featureWhat to remember
KunlunThe farthest north, on the edge of the Tibetan plateau
KarakoramSiachen glacier, at the head of the Nubra valleyQ
CDS 2024 (II): Siachen and the Nubra valley was the one correct pair.
Ladakh rangeNorth of the Indus in Ladakh
Zaskar rangeSouth of the Indus, in front of the Great Himalaya
Great HimalayaKanchenjunga with the Zemu glacier (Sikkim); Nanda Devi (Uttarakhand)
Pir PanjalKarewa deposits on its lower slopes, in the Kashmir valleyQ
CDS 2022 (II): all three statements on the Karewas were true.
Kashmir valleyThe Jhelum meanders; Pangong Tso and Tso Moriri (Ladakh) are salt-water lakesQ
CDS 2026 (I): the statement calling them freshwater lakes was the false one.
ShiwaliksThe outermost foothills, next to the plains
Practice this conceptself-check · 4 quick reps

The same idea in a real exam question:

CDS · 2025 · CDS (I) 2025 — General Knowledge · Q16Hard

Example 1 · Indian Geography — Physical Features · Mountains, Plateaus and Plains

What is the correct sequence of the following mountain ranges as one moves from North towards South ? 1. Karakoram 2. Kunlun 3. Ladakh 4. Zaskar Select the answer using the code given below :

The Kunlun is north of the Karakoram

Going south from Tibet the order is Kunlun, Karakoram, Ladakh, Zaskar. The Karakoram is not the farthest north; the Kunlun is.

Pangong Tso is salty

Pangong Tso and Tso Moriri are high lakes in Ladakh with salt water. Dal and Wular in Kashmir are the freshwater lakes.

Concept 2 of 4: Himalayan passes

A pass is a low gap in a mountain wall that a road can use. Tie each pass to its state and to the two places it joins, going west to east along the Himalaya.

Definition

West to east:

  • Ladakh: Zoji La (from Kashmir), Khardung La, Lanak La.
  • Himachal Pradesh: Rohtang, Shipki La (where the Satluj enters India).
  • Uttarakhand: Lipulekh (Kailash Mansarovar route).
  • Sikkim: Nathu La and Jelep La (to the Chumbi valley of Tibet).
  • Arunachal Pradesh: Bomdi La.
  • Bolan and Khyber are passes of Pakistan and Afghanistan, not of the Indian Himalaya.
PassWhereWhat it joins
Zoji LaBetween Kashmir and LadakhSrinagar and Leh
Khardung LaLadakhLeh and the Nubra valley
Lanak LaLadakh (Aksai Chin)The old route from Ladakh to LhasaQ
RohtangHimachal PradeshKullu and Lahaul
Shipki LaHimachal Pradesh (Kinnaur)The Satluj valley and TibetQ
CDS 2026 (I): Shipki La is in the Satluj valley, not the Chumbi or Teesta valley.
LipulekhUttarakhand (Pithoragarh)India and Tibet, on the Kailash Mansarovar route
Nathu LaSikkimGangtok and the Chumbi valley
Jelep LaSikkimSikkim and the Chumbi valley
Bomdi LaArunachal PradeshThe road to Tawang
BolanPakistan (Balochistan)Not a Himalayan passQ
CDS 2023 (II): the odd one out against Zojila, Shipkila and Lipulekh.
Practice this conceptself-check · 4 quick reps

The same idea in a real exam question:

CDS · 2017 · CDS (II) 2017 — General Knowledge · Q50Moderate

Example 2 · Indian Geography — Physical Features · Mountains, Plateaus and Plains

Match List-I with List-II and select the correct answer using the code given below the Lists :
List-I (Pass)List-II (Place)
A. Zoji La1. Himachal Pradesh
B. Shipki La2. Uttarakhand
C. Lipulekh3. Jammu and Kashmir
D. Nathu La4. Sikkim
Code :

Shipki La and Lipulekh are next door, not the same state

Shipki La is in Himachal Pradesh, on the Satluj. Lipulekh is in Uttarakhand, on the Kailash Mansarovar route. CDS swaps them in the options.

Bolan and Khyber are not Indian

The Bolan (Pakistan) and the Khyber (Pakistan and Afghanistan) cross the western mountains, not the Indian Himalaya.

Concept 3 of 4: Hills and plateaus of the peninsula

The peninsula is an old, hard block of rock worn down into plateaus and hill ranges. Each range has one peak or one fact CDS asks about. Learn the range, its top and its state together.

Definition

The ranges, north to south:

  • Aravalli (Rajasthan): highest point Guru Shikhar on Mount Abu.
  • Vindhya: just north of the Narmada.
  • Satpura: between the Narmada and the Tapi; highest point Dhupgarh near Pachmarhi. The Mahadeo hills are its eastern part.
  • Nilgiri (Tamil Nadu): Doddabetta.
  • Anaimalai (Kerala): Anaimudi, the highest peak of peninsular India.

Plateaus: Malwa (western Madhya Pradesh, black soil, Indore) and Chota Nagpur (Jharkhand, old Archaean granite and gneiss, rich in minerals).

Hills or plateauPeak or factState
AravalliGuru Shikhar, Mount AbuRajasthan
VindhyaThe northern wall of the Narmada valleyMadhya Pradesh
SatpuraDhupgarh; lies between the Narmada and the TapiMadhya Pradesh
Mahadeo hillsEastern part of the Satpura systemMadhya Pradesh
NilgiriDoddabettaTamil Nadu
AnaimalaiAnaimudi, the highest peak of the peninsulaKerala
Malwa plateauBlack soil; Indore stands on itMadhya PradeshQ
CDS 2025 (II): Indore is on the Malwa plateau, not in Nimar, Bundelkhand or Mahakoshal.
Chota Nagpur plateauArchaean granite and gneiss; rich in mineralsJharkhand
Practice this conceptself-check · 4 quick reps

The same idea in a real exam question:

CDS · 2019 · CDS (II) 2019 — General Knowledge · Q66Moderate

Example 3 · Indian Geography — Physical Features · Mountains, Plateaus and Plains

Match List I with List II and select the correct answer using the code given below the lists :
List I (Peak)List II (Name of Hill)
A. Anaimudi1. Nilgiri
B. Doddabetta2. Satpura
C. Dhupgarh3. Aravali
D. Guru Shikhar4. Annamalai
Code :

Anaimudi beats Doddabetta

Doddabetta is the top of the Nilgiris, but the highest peak of the whole peninsula is Anaimudi in the Anaimalai hills of Kerala.

Dhupgarh is Satpura, Guru Shikhar is Aravalli

Dhupgarh (near Pachmarhi) crowns the Satpura; Guru Shikhar (Mount Abu) crowns the Aravalli. The Vindhya has no peak CDS has asked about.

Concept 4 of 4: Plains, desert and coasts

When a river leaves the mountains it slows down and drops its load: the heavy boulders first, at the foot of the hills, and the fine silt far out on the plain. That one idea explains the belts of the northern plains. The Thar and the two coasts each have one fact CDS asks.

Definition

The northern plains, from the hills outwards:

  • Bhabar: a narrow belt of pebbles and boulders at the foot of the Shiwaliks; streams sink under it.
  • Terai: a wet, marshy belt south of the bhabar where the streams come back up.
  • Bhangar: older alluvium, above flood level, with lime nodules (kankar).
  • Khadar: newer alluvium on the floodplains, renewed by floods every year.

The Thar (Marusthali) lay under the sea in the Mesozoic era; fossils at Aakal and marine deposits near Brahmsar (Jaisalmer) show it. The west coast is high, rocky and retreating, with erosional forms. The east coast is low and sedimentary, with depositional forms such as deltas.

FeatureWhat it is
BhabarBoulders and pebbles at the foot of the Shiwaliks
TeraiMarshy belt south of the bhabar
BhangarOlder alluvium, above flood level
KhadarNewer alluvium on the floodplains
Thar (Marusthali)Under the sea in the Mesozoic eraQ
CDS 2022 (II): Mesozoic, not Palaeozoic or Cenozoic.
West coastHigh, rocky, retreating; erosional landformsQ
CDS 2022 (II): all three statements on the two coasts were true.
East coastLow, sedimentary; depositional landforms such as deltas
Practice this conceptself-check · 4 quick reps

The same idea in a real exam question:

CDS · 2021 · CDS (II) 2021 — General Knowledge · Q98Moderate

Example 4 · Indian Geography — Physical Features · Mountains, Plateaus and Plains

Streams and rivers coming from the mountains deposit heavy materials of rocks and boulders in

Bhabar is dry, terai is wet

The bhabar is a dry belt of boulders where streams disappear underground. The terai below it is marshy, because the streams come up again there.

Khadar is new, bhangar is old

Khadar is the new alluvium laid down by floods each year. Bhangar is the old alluvium on higher ground. Students often swap them.

Summary — formulas & gotchas at a glance

A revision cheat-sheet for the formulas and gotchas above. Click any concept name to jump back to its full explanation.

Reference tables (4)

Ranges of the north, peaks and glaciers8 rows
Range or featureWhat to remember
KunlunThe farthest north, on the edge of the Tibetan plateau
KarakoramSiachen glacier, at the head of the Nubra valleyQ
CDS 2024 (II): Siachen and the Nubra valley was the one correct pair.
Ladakh rangeNorth of the Indus in Ladakh
Zaskar rangeSouth of the Indus, in front of the Great Himalaya
Great HimalayaKanchenjunga with the Zemu glacier (Sikkim); Nanda Devi (Uttarakhand)
Pir PanjalKarewa deposits on its lower slopes, in the Kashmir valleyQ
CDS 2022 (II): all three statements on the Karewas were true.
Kashmir valleyThe Jhelum meanders; Pangong Tso and Tso Moriri (Ladakh) are salt-water lakesQ
CDS 2026 (I): the statement calling them freshwater lakes was the false one.
ShiwaliksThe outermost foothills, next to the plains
Himalayan passes10 rows
PassWhereWhat it joins
Zoji LaBetween Kashmir and LadakhSrinagar and Leh
Khardung LaLadakhLeh and the Nubra valley
Lanak LaLadakh (Aksai Chin)The old route from Ladakh to LhasaQ
RohtangHimachal PradeshKullu and Lahaul
Shipki LaHimachal Pradesh (Kinnaur)The Satluj valley and TibetQ
CDS 2026 (I): Shipki La is in the Satluj valley, not the Chumbi or Teesta valley.
LipulekhUttarakhand (Pithoragarh)India and Tibet, on the Kailash Mansarovar route
Nathu LaSikkimGangtok and the Chumbi valley
Jelep LaSikkimSikkim and the Chumbi valley
Bomdi LaArunachal PradeshThe road to Tawang
BolanPakistan (Balochistan)Not a Himalayan passQ
CDS 2023 (II): the odd one out against Zojila, Shipkila and Lipulekh.
Hills and plateaus of the peninsula8 rows
Hills or plateauPeak or factState
AravalliGuru Shikhar, Mount AbuRajasthan
VindhyaThe northern wall of the Narmada valleyMadhya Pradesh
SatpuraDhupgarh; lies between the Narmada and the TapiMadhya Pradesh
Mahadeo hillsEastern part of the Satpura systemMadhya Pradesh
NilgiriDoddabettaTamil Nadu
AnaimalaiAnaimudi, the highest peak of the peninsulaKerala
Malwa plateauBlack soil; Indore stands on itMadhya PradeshQ
CDS 2025 (II): Indore is on the Malwa plateau, not in Nimar, Bundelkhand or Mahakoshal.
Chota Nagpur plateauArchaean granite and gneiss; rich in mineralsJharkhand
Plains, desert and coasts7 rows
FeatureWhat it is
BhabarBoulders and pebbles at the foot of the Shiwaliks
TeraiMarshy belt south of the bhabar
BhangarOlder alluvium, above flood level
KhadarNewer alluvium on the floodplains
Thar (Marusthali)Under the sea in the Mesozoic eraQ
CDS 2022 (II): Mesozoic, not Palaeozoic or Cenozoic.
West coastHigh, rocky, retreating; erosional landformsQ
CDS 2022 (II): all three statements on the two coasts were true.
East coastLow, sedimentary; depositional landforms such as deltas

Watch out for (8)

Test yourself on Indian Geography — Physical Features

20 past CDS questions from this chapter, timed at 20 minutes and marked the way the exam marks it. You see your score and every answer the moment you finish. Free to start.