Civil Services Prepby Garima Malik & Nitin Sangwan Account

UPSC Prelims · General Studies

Geography

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India: drainage and water resources

The Ganga river system

Practise 2 PYQs

Concepts to cover

  1. Headwaters: Bhagirathi from Gangotri, Alaknanda from Satopanth, Devprayag and the Panch Prayag, Haridwar
  2. Left-bank tributaries west to east: Ramganga, Gomati, Ghaghara (Sarda, Kali), Gandak, Burhi Gandak, Kosi, Mahananda
  3. Yamuna: Yamunotri and Bandarpunch, Chambal, Sind, Betwa, Ken; Hindon and Tons; confluence at Prayagraj
  4. Son from Amarkantak; Damodar (Barakar, Maithon and Panchet dams) and the Chotanagpur rivers
  5. Kosi (sorrow of Bihar) and Gandak: shifting courses, oxbow lakes such as Kanwar
  6. Lower Ganga: Farakka barrage, Bhagirathi-Hooghly, Padma and Meghna in Bangladesh, Sundarbans delta
Where to study

India: Physical Environment, Class XI, chapter 3: Drainage System (2026-27)

  • ch. 3, Drainage System, p. 1-10 (book pages 17-26)
  • ch. 3, The Ganga System, p. 5 (book page 21)
  • ch. 3, Ghaghara, p. 6 (book page 22)
  • ch. 3, Yamuna, p. 6 (book page 22)
  • ch. 3, Damodar, p. 6 (book page 22)
  • ch. 3, Kosi, p. 6 (book page 22)
  • ch. 3, Padma, p. 5 (book page 21)
  • ch. 3, Meghna, p. 3 (book page 19)

Geography of India · Majid Husain

  • ch. 3, Drainage Systems and Water Resources
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