Geography

Physiographic Divisions of India – UPSC Notes

By Swaleha Siddiqui | Mumkin Hai IAS

1. Northern and North-Eastern Mountains

  • Himalayas: Divided into Himadri, Himachal, Shiwaliks
  • Purvanchal Hills: Patkai, Naga, Mizo, Khasi hills
  • Importance: Source of rivers, biodiversity, climate barrier

2. Northern Plains

  • Formed by: Indus, Ganga, Brahmaputra alluvium
  • Subdivisions: Bhabar, Terai, Bhangar, Khadar
  • Significance: Fertile land, high population, food production

3. Peninsular Plateau

  • Oldest landmass: Formed in Pre-Cambrian era
  • Regions: Central Highlands, Deccan Plateau, Chotanagpur Plateau
  • Rich in: Minerals, forests, black soil (cotton)

4. Indian Desert

  • Thar Desert: Arid, sandy, low rainfall
  • River: Luni (seasonal)
  • Development: Indira Gandhi Canal, solar energy hub

5. Coastal Plains & Islands

Western & Eastern Coastal Plains:

  • Western Coast: Narrow, includes Konkan, Malabar
  • Eastern Coast: Wider, includes deltas of Krishna, Godavari, Kaveri

Islands:

  • Andaman & Nicobar: Volcanic origin, Barren Island
  • Lakshadweep: Coral atolls, flat terrain

UPSC Mains Sample Questions

  1. Discuss the role of physiographic features in shaping India’s socio-economic development.
  2. Explain how the physiographic divisions of India influence its climate and biodiversity.
  3. Describe the distinct characteristics of the Peninsular Plateau and how it differs from the Northern Plains.

Β© 2025 Mumkin Hai IAS | Compiled by Swaleha Siddiqui

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