Physical Features of India: Mountains, Plains, Plateaus, and Coasts

A Today you'll learn

Identify the five major physiographic divisions of India on a relief map.
Explain how the Himalayas influence climate, river systems, and monsoon winds.
Compare the fertile Northern Plains, the mineral-rich Deccan Plateau, and the Coastal Plains.

B Let's understand

India is a vast subcontinent characterized by incredible geographical diversity. It is divided into five primary physical divisions: 1) The Northern Mountains (Himalayas): The world’s highest mountain range, running across the northern border. It acts as a climatic barrier against freezing Central Asian winds, intercepts monsoon clouds causing rainfall, and feeds perennial rivers. 2) The Northern Plains: Formed by alluvial silt deposits carried by the Indus, Ganga, and Brahmaputra river systems; fertile and densely populated, known as the "Granary of India". 3) The Peninsular Plateau: An ancient, triangular, elevated tableland rich in coal, iron ore, and minerals, bordered by the Western and Eastern Ghats. 4) The Great Indian Desert (Thar): An arid, sandy landscape in Rajasthan with shifting sand dunes and extreme temperatures. 5) The Coastal Plains and Islands: Stretching along the Arabian Sea (Western Coastal Plain) and the Bay of Bengal (Eastern Coastal Plain), plus island archipelagos: Lakshadweep (coral islands) and Andaman & Nicobar (volcanic islands).

C See it step by step

Example 1: Why are the Northern Plains of India called the "Food Bowl" or "Granary" of the country?

Step 1: Himalayan rivers carry rich silt (alluvium) that gets deposited across the plains during annual floods.
Step 2: The deep alluvial soil is exceptionally fertile and retains moisture well.
Step 3: Flat terrain allows extensive canal irrigation and mechanized farming.
Step 4: Major staple food crops like wheat, rice, and sugarcane flourish here, feeding millions.

Example 2: How does the Western Ghats mountain chain affect monsoon rainfall in India?

Step 1: Moisture-laden Southwest Monsoon winds blow in from the Arabian Sea.
Step 2: The high Western Ghats force these winds to rise rapidly.
Step 3: Rising moist air cools and condenses, dropping torrential orographic rain on western slopes.
Step 4: By the time winds cross to the eastern plateau, they hold little moisture (rain shadow region).

D Your turn

Which mountain range guards the northern boundary of India?

Look back at "Let's understand" above for a clue.

E Ready to practise?

India has 5 major physical divisions

India has 5 major physical divisions: Himalayas, Northern Plains, Peninsular Plateau, Thar Desert, and Coastal Plains & Islands.

Key idea 2

The Himalayas act as a climate wall and are the source of perennial rivers like the Ganga and Yamuna.

Key idea 3

The Northern Plains are covered with fertile alluvial soil, ideal for farming.

Key idea 4

The Deccan Plateau is rich in mineral resources like coal, bauxite, and iron ore.

Key idea 5

Lakshadweep in the Arabian Sea consists of coral atolls; Andaman & Nicobar in the Bay of Bengal are volcanic islands.

Warm up

1. Name the highest mountain peak in the world located in the Himalayas.

2. Which three major river systems formed the fertile Northern Plains of India?

3. What type of fertile soil is deposited by rivers across the Northern Plains?

Practise

4. Which triangular plateau region lies south of the Narmada River?

5. Name the desert situated in western Rajasthan.

6. Differentiate between the Western Coastal Plain and the Eastern Coastal Plain in terms of width.

Challenge

7. In which water body is the Lakshadweep Island group located?

8. Explain two ways the Himalayas protect India.

Download worksheet (PDF)

Question 1: Name the highest mountain peak in the world located in the Himalayas.

Answer: Mount Everest (located in the Nepal Himalayas)

Question 2: Which three major river systems formed the fertile Northern Plains of India?

Answer: The Indus, the Ganga, and the Brahmaputra

Question 3: What type of fertile soil is deposited by rivers across the Northern Plains?

Answer: Alluvial soil (Alluvium)

Question 4: Which triangular plateau region lies south of the Narmada River?

Answer: The Deccan Plateau

Question 5: Name the desert situated in western Rajasthan.

Answer: The Thar Desert (The Great Indian Desert)

Question 6: Differentiate between the Western Coastal Plain and the Eastern Coastal Plain in terms of width.

Answer: The Western Coastal Plain is narrow, whereas the Eastern Coastal Plain is wider and feature rich river deltas

Question 7: In which water body is the Lakshadweep Island group located?

Answer: The Arabian Sea

Question 8: Explain two ways the Himalayas protect India.

Answer: They block freezing cold Siberian winds from Central Asia and trap moisture-rich monsoon clouds causing abundant rainfall across India