Physical Features of India
Overview
Physical Features of India is a foundational topic in the Geography section of Social Studies for MP TET Varg-2. Questions frequently test your knowledge of major landforms, river systems, and climatic zones. Understanding India's physiography helps explain settlement patterns, agriculture, and resource distribution—themes that connect to other social studies topics.
India displays remarkable physical diversity across its 32.8 lakh sq km area. The country stretches from the towering Himalayas in the north to the tropical coastline in the south, and from the Thar Desert in the west to the deltaic plains in the east. For the exam, focus on names, locations, heights of peaks, river origins, and climate types. Map-based mental imagery is essential.
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Key Concepts
- **Six Major Physiographic Divisions**: India is divided into the Himalayan Mountains, Northern Plains, Peninsular Plateau, Coastal Plains, Islands, and the Thar Desert.
- **Himalayan Formation**: The Himalayas are young fold mountains formed by the collision of the Indian Plate and Eurasian Plate during the Tertiary period (about 50 million years ago).
- **Northern Plains as Alluvial Deposits**: The vast Indo-Gangetic plains are formed by depositional work of three river systems—Indus, Ganga, and Brahmaputra—making them extremely fertile.
- **Peninsular Plateau as Oldest Landmass**: The Deccan Plateau is part of the ancient Gondwana land, composed of igneous and metamorphic rocks, rich in minerals.
- **Rivers of India**: Classified as Himalayan (perennial, snow-fed) and Peninsular (rain-fed, seasonal). Drainage divided into Bay of Bengal and Arabian Sea systems.
- **Monsoon Climate**: India's climate is dominated by the southwest monsoon (June–September) bringing 75% of annual rainfall. Four seasons: winter, summer, advancing monsoon, retreating monsoon.
- **Western and Eastern Ghats**: Western Ghats are higher and continuous; Eastern Ghats are lower and discontinuous, cut by east-flowing rivers.
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Key Facts
| Feature | Important Details | |---------|-------------------| | Highest Peak (India) | Kanchenjunga (8586 m) in Sikkim | | Highest Peak (World) | Mt Everest (8848 m), on Nepal-Tibet border | | Longest River (India) | Ganga (2525 km) | | Largest Peninsular River | Godavari (1465 km), called "Dakshin Ganga" | | Highest Plateau | Ladakh Plateau (average 5000 m) | | Largest Delta | Sundarbans (Ganga-Brahmaputra delta) | | Hottest Place | Sri Ganganagar (Rajasthan) in summer | | Wettest Place | Mawsynram (Meghalaya) – about 1187 cm annual rainfall | | Driest Region | Thar Desert (less than 25 cm rainfall) |