APPSC Group II · Bite-size lessons
Physical Geography - Landforms, Climate, Resources
About 6 min · General Studies and Mental Ability · English
Time worked out from the lesson's 387 words at 150 words a minute, plus a minute for each question.
Physical Geography of India forms a foundational pillar for APPSC Group II preparation and provides context for economic/environmental topics. Understanding India's landforms explains settlement patterns, agriculture zones, and infrastructure challenges. Climate knowledge connects to monsoons, disasters, and water resources. Natural resources directly link to industrial development and current affairs on mining, energy, and sustainability.
Key ideas
- India's Physiographic Divisions: The country is divided into six major regions — Northern Mountains, Northern Plains, Peninsular Plateau, Indian Desert, Coastal Plains, and Islands. Each has distinct geological origin and economic significance.
- Himalayan Formation: The Himalayas formed due to collision of the Indo-Australian and Eurasian tectonic plates (convergent boundary). They are young fold mountains, still rising, hence prone to earthquakes.
- Peninsular Plateau: One of the oldest landmasses (part of Gondwanaland), composed of igneous and metamorphic rocks. Divided into Central Highlands (north of Narmada) and Deccan Plateau (south of Narmada).
- Monsoon Mechanism: India's climate is dominated by the Southwest Monsoon (June-September) caused by differential heating of land and sea, ITCZ shift, and Somali Jet. Northeast Monsoon (October-December) brings rain to Tamil Nadu coast.
- Climatic Regions: India has tropical monsoon climate predominantly, with variations — tropical wet (Western Ghats), semi-arid (Deccan), arid (Thar), subtropical humid (Gangetic plain), and alpine (Himalayas).
Watch out for
- Confusing Western and Eastern Ghats characteristics → Western Ghats are continuous and on windward side (heavy rain); Eastern Ghats are broken by rivers and on leeward side. Remember: "West is Best" for rain and height.
- Mixing up Himalayan ranges sequence → From south to north: Shiwaliks, Lesser Himalayas, Greater Himalayas, Trans-Himalayas. Students often reverse this order.
- Assuming all peninsular rivers flow eastward → Narmada and Tapi flow westward through rift valleys. These are exceptions because they flow in fault troughs, not on plateau slope.
Quick reference
- 6 Physiographic Divisions: Mountains, Plains, Plateau, Desert, Coastal Plains, Islands
- Monsoon = June-September (SW) + October-December (NE for Tamil Nadu)
- Perennial rivers = Himalayan; Seasonal rivers = Peninsular
- Mineral belt = Chotanagpur Plateau (Jharkhand-Odisha-Chhattisgarh)
- Western Ghats = Continuous, high rainfall; Eastern Ghats = Discontinuous
Check yourself: 3 questions
1. Which river system separates the Rayalaseema region from the Coastal Andhra region?
2. Which of the following physiographic regions is NOT found in Andhra Pradesh?
3. The Western Ghats are known by the local name 'Sahyadri' in which of the following states?
This lesson is cut from the topic's note, not rewritten. Fact-checked on 17 Oct 2026: an AI-assisted check of this note against cited sources; the errors it found were corrected that day. Some errors may remain. The questions are from Shishya's validated question bank.
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