Physical Features of India

Overview

Physical Features of India is a foundational topic in the Geography section of JTET Paper II Social Studies. Questions typically test your knowledge of major landforms, river systems, and climatic patterns across India. This topic carries significant weightage as it connects to understanding agriculture, population distribution, and resource availability — themes that recur throughout the Social Studies syllabus.

For JTET, you must master the classification of physiographic divisions, identify key mountain ranges and passes, distinguish between river systems, and understand India's monsoon-driven climate. Jharkhand-specific geography (Chota Nagpur Plateau) often appears, so link national features to your state context.

Key Concepts

• **Six Major Physiographic Divisions**: India is divided into the Himalayan Mountains, Northern Plains, Peninsular Plateau, Coastal Plains, Indian Desert, and Islands — each with distinct geological origin and characteristics.

• **Himalayan Formation**: The Himalayas are young fold mountains formed by the collision of the Indo-Australian and Eurasian tectonic plates about 50 million years ago; they continue to rise by a few millimetres each year.

• **Three Parallel Ranges of Himalayas**: Greater Himalayas (Himadri) with permanent snow, Middle Himalayas (Himachal) with hill stations, and Outer Himalayas (Shiwaliks) with loose sediments.

• **Northern Plains Origin**: Formed by alluvial deposits brought by the Indus, Ganga, and Brahmaputra river systems; these plains are among the most fertile agricultural lands in the world.

• **Peninsular Plateau Characteristics**: One of the oldest landmasses (part of Gondwanaland), composed of igneous and metamorphic rocks, rich in minerals — Chota Nagpur Plateau falls in this division.

• **Drainage Divide**: Western Ghats act as the water divide — rivers to the east (Godavari, Krishna, Kaveri) flow into the Bay of Bengal; rivers to the west (Narmada, Tapi) flow into the Arabian Sea.

• **Monsoon Climate**: India experiences a tropical monsoon climate with four seasons — summer, monsoon (southwest), post-monsoon (retreating), and winter.

• **Rain Shadow Effect**: Areas on the leeward side of the Western Ghats (Deccan interior) receive less rainfall, creating semi-arid conditions.

Key Facts

| Feature | Important Details | |---------|-------------------| | Highest Peak | Mount Everest (8,849 m) in Nepal Himalayas; K2 (8,611 m) in Karakoram | | Highest Peak in India | Kanchenjunga (8,586 m) in Sikkim | | Longest River | Ganga (2,525 km within India) | | Largest Peninsular River | Godavari (1,465 km) — "Dakshin Ganga" | | Western Ghats | Average height 900-1,600 m; highest point Anamudi (2,695 m) in Kerala | | Eastern Ghats | Discontinuous; highest point Mahendragiri (1,501 m) in Odisha | | Major Passes | Karakoram Pass, Khyber Pass, Shipki La, Nathu La, Bomdi La | | Thar Desert | Located in Rajasthan; receives less than 150 mm annual rainfall | | Island Groups | Andaman & Nicobar (Bay of Bengal); Lakshadweep (Arabian Sea — coral islands) | | Southwest Monsoon Period | June to September; brings 75% of India's annual rainfall |